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Testo completo

(1)

a a (−3) + (−10) = a (−9) − (−8) =

b (+5) ∙ (−7) = b (0) ∙ (−7) = b (+3) + (+7) =

c (−7) ∙ (−4) = c (−7) − (+6) = c (−9) ∙ (−7) =

d (−10) ∙ (+4) = d (−10) ∙ (+10) = d (+7) − (−8) =

e (+7) ∙ (+8) = e (+8) + (+1) = e (+9) ∙ (−9) =

f (−5) ∙ (−3) = f (−1) ∙ (−2) = f (+9) − (+7) =

g (−5) ∙ (−10) = g (+4) ∙ (−4) = g (−7) − (−7) =

h (−4) ∙ (−5) = h (−10) ∙ (−9) = h (−2) ∙ (+5) =

i (+4) ∙ (−2) = i (+5) ∙ (+2) = i (−7) + (+8) =

j (−10) ∙ (−5) = j (−2) ∙ (−3) = j (+9) + (−10) =

k (+7) ∙ (0) = k (+9) − (+9) = k (+8) ∙ (+3) =

l (−10) ∙ (−3) = l (−8) ∙ (−10) = l (+8) − (+6) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+20) ∙ (−13) = m (−11) + (−5) = m (+15) ∙ (−10) =

n (+4) ∙ (−8) = n (−6) ∙ (−3) = n (+18) ∙ (−6) =

o (−6) ∙ (+18) = o (−2) ∙ (+11) = o (−19) − (−16) =

p (+20) ∙ (−3) = p (+19) + (−10) = p (−2) ∙ (+4) =

q (−18) ∙ (+5) = q (0) ∙ (+16) = q (−6) ∙ (+16) =

r (−19) ∙ (+7) = r (−10) ∙ (−14) = r (−10) − (−8) =

s (−6) ∙ (+17) = s (−1) − (−3) = s (−8) ∙ (+5) =

t (−10) ∙ (+20) = t (−1) − (+10) = t (−11) ∙ (+20) =

u (+7) ∙ (+11) = u (+8) + (−15) = u (+20) + (0) =

v (−1) ∙ (0) = v (−19) ∙ (−12) = v (−3) ∙ (+19) =

w (−14) ∙ (+15) = w (+1) − (−10) = w (−3) − (+8) =

x (−5) ∙ (+11) = x (−15) ∙ (−20) = x (−10) ∙ (+10) =

(+4) ∙ (+3) =

(2)

a a (−10) ∙ (−8) = a (0) + (−7) =

b (−4) ∙ (+5) = b (+2) − (+8) = b (−3) − (−10) =

c (+9) ∙ (−8) = c (−6) ∙ (+6) = c (+10) ∙ (+8) =

d (−4) ∙ (−5) = d (−7) − (−2) = d (−9) ∙ (+10) =

e (+7) ∙ (+6) = e (+10) + (+3) = e (+9) ∙ (+7) =

f (+8) ∙ (−2) = f (−10) − (+1) = f (+1) + (−3) =

g (+10) ∙ (−7) = g (−5) ∙ (+6) = g (+5) ∙ (+2) =

h (+2) ∙ (+8) = h (+2) ∙ (+3) = h (+3) ∙ (−1) =

i (+5) ∙ (−2) = i (−10) − (−3) = i (−8) ∙ (−8) =

j (0) ∙ (+3) = j (+7) − (+10) = j (−8) ∙ (+3) =

k (+7) ∙ (−5) = k (+5) + (+9) = k (+9) − (+6) =

l (+6) ∙ (−8) = l (−7) − (+10) = l (+6) ∙ (−1) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+9) ∙ (−15) = m (+6) ∙ (+17) = m (−7) + (+16) =

n (0) ∙ (−4) = n (−8) ∙ (+1) = n (+1) − (−9) =

o (−16) ∙ (−19) = o (−11) ∙ (−12) = o (+12) − (+10) =

p (+8) ∙ (+6) = p (−9) ∙ (−1) = p (−18) + (−1) =

q (+18) ∙ (−15) = q (+4) ∙ (−17) = q (+19) ∙ (+10) =

r (−11) ∙ (−13) = r (−3) ∙ (−12) = r (−9) + (−20) =

s (−14) ∙ (+19) = s (+7) + (−20) = s (−14) + (+18) =

t (0) ∙ (+11) = t (−9) + (+8) = t (+6) ∙ (+10) =

u (+3) ∙ (−8) = u (+12) ∙ (0) = u (+8) − (−19) =

v (−14) ∙ (+16) = v (+20) ∙ (−16) = v (−12) ∙ (−17) =

w (+13) ∙ (−15) = w (−6) + (−7) = w (0) + (+14) =

x (+15) ∙ (+18) = x (+13) + (+5) = x (−13) ∙ (−12) =

(+4) ∙ (+3) =

(3)

a a (+9) ∙ (−8) = a (−1) − (+7) =

b (+4) ∙ (+2) = b (+2) − (−9) = b (−6) ∙ (0) =

c (−10) ∙ (+9) = c (+2) ∙ (−6) = c (+1) + (−10) =

d (−2) ∙ (+9) = d (−10) ∙ (−2) = d (+1) + (+10) =

e (+4) ∙ (0) = e (+10) + (+9) = e (−7) + (+1) =

f (−3) ∙ (−4) = f (+8) ∙ (+2) = f (−3) − (+4) =

g (+10) ∙ (−5) = g (+3) ∙ (+10) = g (−5) + (+2) =

h (+3) ∙ (+6) = h (+4) ∙ (−7) = h (−10) − (−3) =

i (+3) ∙ (−8) = i (+2) + (−2) = i (+7) + (+6) =

j (−5) ∙ (+1) = j (+10) ∙ (−7) = j (−8) ∙ (+2) =

k (+4) ∙ (−5) = k (+7) ∙ (−9) = k (+9) − (0) =

l (+10) ∙ (+4) = l (−7) ∙ (+2) = l (−5) ∙ (−2) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+4) ∙ (+3) = m (−13) + (−1) = m (+5) ∙ (−3) =

n (+2) ∙ (−8) = n (+10) − (−16) = n (+13) ∙ (−13) =

o (−16) ∙ (−19) = o (−18) − (−4) = o (−12) − (+16) =

p (+4) ∙ (−13) = p (−13) + (−17) = p (−5) − (+13) =

q (+1) ∙ (−9) = q (−11) + (+7) = q (+4) ∙ (+9) =

r (−6) ∙ (−5) = r (−12) ∙ (+17) = r (+17) ∙ (−8) =

s (−4) ∙ (−2) = s (+8) + (+6) = s (−2) − (−6) =

t (+10) ∙ (+5) = t (−19) + (−16) = t (−14) − (+5) =

u (−5) ∙ (+6) = u (+3) + (−18) = u (−3) + (+20) =

v (+16) ∙ (−5) = v (−20) ∙ (+18) = v (−14) + (+17) =

w (+18) ∙ (+3) = w (+18) ∙ (−14) = w (+20) ∙ (−5) =

x (+18) ∙ (−13) = x (0) − (−12) = x (+16) + (+13) =

(+4) ∙ (+3) =

(4)

a a (−1) − (−5) = a (−7) − (−10) =

b (+10) ∙ (−8) = b (−3) + (+4) = b (0) ∙ (0) =

c (−6) ∙ (+3) = c (+2) − (−1) = c (+4) ∙ (+2) =

d (+5) ∙ (+10) = d (−7) − (+8) = d (0) ∙ (−9) =

e (−10) ∙ (+9) = e (+5) + (0) = e (−7) − (−8) =

f (+5) ∙ (−6) = f (−6) − (+2) = f (−1) − (+2) =

g (−5) ∙ (+8) = g (+9) ∙ (−7) = g (−10) ∙ (0) =

h (−3) ∙ (+5) = h (0) + (+1) = h (0) ∙ (+2) =

i (+2) ∙ (+9) = i (−9) ∙ (+10) = i (+6) ∙ (+3) =

j (−1) ∙ (+7) = j (+8) − (+6) = j (−9) − (−3) =

k (+3) ∙ (+8) = k (+8) + (−3) = k (+9) ∙ (−4) =

l (−2) ∙ (−8) = l (−9) + (−9) = l (−2) + (+5) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−13) ∙ (+20) = m (−17) ∙ (+12) = m (−16) ∙ (+18) =

n (+15) ∙ (+9) = n (−10) ∙ (−16) = n (−13) ∙ (0) =

o (+2) ∙ (+18) = o (+2) ∙ (−10) = o (+19) ∙ (−8) =

p (−1) ∙ (−16) = p (+17) ∙ (−9) = p (+2) + (+13) =

q (−19) ∙ (+7) = q (+1) + (−12) = q (+5) ∙ (−1) =

r (−6) ∙ (−12) = r (−10) ∙ (+8) = r (−8) ∙ (−11) =

s (−10) ∙ (−11) = s (+7) − (+2) = s (−10) ∙ (+15) =

t (−11) ∙ (−6) = t (−19) + (+2) = t (−16) ∙ (+16) =

u (+5) ∙ (+11) = u (+14) − (−18) = u (−9) ∙ (−13) =

v (−15) ∙ (+8) = v (−15) − (−8) = v (−5) − (−3) =

w (+10) ∙ (+5) = w (+1) + (+18) = w (−9) ∙ (−17) =

x (+2) ∙ (+10) = x (−9) + (−8) = x (−2) ∙ (−12) =

(+4) ∙ (+3) =

(5)

a a (−2) − (−6) = a (+4) ∙ (−10) =

b (+5) ∙ (+5) = b (+10) − (−9) = b (+7) ∙ (−1) =

c (+3) ∙ (+7) = c (+6) + (−4) = c (−7) − (+5) =

d (+3) ∙ (+9) = d (+3) − (+9) = d (+4) ∙ (−3) =

e (+3) ∙ (−1) = e (−7) − (−6) = e (+7) ∙ (+8) =

f (+10) ∙ (−9) = f (−3) + (+10) = f (+4) ∙ (−9) =

g (+3) ∙ (−9) = g (−2) + (−10) = g (−10) ∙ (+7) =

h (+7) ∙ (−9) = h (+3) + (−6) = h (−1) ∙ (+7) =

i (−8) ∙ (+6) = i (−6) + (+2) = i (0) ∙ (+3) =

j (0) ∙ (−6) = j (−2) ∙ (−3) = j (−5) ∙ (0) =

k (−7) ∙ (−5) = k (+2) ∙ (+10) = k (+2) − (+10) =

l (+5) ∙ (+3) = l (−1) − (+4) = l (−10) + (+4) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+15) ∙ (−12) = m (−16) ∙ (+10) = m (−18) ∙ (+7) =

n (−20) ∙ (−7) = n (+12) − (−18) = n (+2) ∙ (+3) =

o (+18) ∙ (+3) = o (+20) ∙ (−10) = o (−8) ∙ (−4) =

p (+19) ∙ (−10) = p (−7) + (−3) = p (+9) + (−11) =

q (+4) ∙ (−7) = q (−18) − (−8) = q (+11) ∙ (−16) =

r (−8) ∙ (+14) = r (−15) ∙ (+7) = r (+7) ∙ (−14) =

s (−10) ∙ (+19) = s (+20) + (−10) = s (+3) − (+4) =

t (−13) ∙ (−8) = t (−5) − (+18) = t (−5) ∙ (−7) =

u (−2) ∙ (+11) = u (−6) − (−1) = u (−4) ∙ (+17) =

v (−7) ∙ (−1) = v (+9) + (+9) = v (+8) ∙ (−2) =

w (−6) ∙ (−3) = w (−1) ∙ (+12) = w (−5) − (−18) =

x (+5) ∙ (−12) = x (+12) − (+9) = x (−18) ∙ (+18) =

(+4) ∙ (+3) =

(6)

a a (−2) ∙ (+4) = a (−1) ∙ (+9) =

b (−2) ∙ (+7) = b (−4) ∙ (−7) = b (−1) ∙ (+6) =

c (+4) ∙ (−4) = c (−1) ∙ (−5) = c (−7) ∙ (−10) =

d (+5) ∙ (−6) = d (+2) − (−8) = d (+3) ∙ (+4) =

e (+10) ∙ (+5) = e (+3) ∙ (−3) = e (−3) ∙ (−6) =

f (−6) ∙ (+2) = f (+5) + (−1) = f (+6) ∙ (+4) =

g (−7) ∙ (+1) = g (+8) − (+8) = g (−9) + (+10) =

h (+4) ∙ (−1) = h (−1) ∙ (+5) = h (−7) + (+9) =

i (−4) ∙ (−9) = i (−5) − (−3) = i (−6) ∙ (+10) =

j (+8) ∙ (−3) = j (−10) ∙ (−6) = j (−1) + (−1) =

k (−4) ∙ (−8) = k (0) ∙ (+7) = k (+3) + (−4) =

l (+7) ∙ (−1) = l (−4) − (0) = l (−8) ∙ (+3) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−6) ∙ (−20) = m (−15) ∙ (+20) = m (+7) ∙ (+19) =

n (+14) ∙ (−4) = n (−7) + (−10) = n (+7) ∙ (+13) =

o (−11) ∙ (+9) = o (−5) ∙ (−16) = o (+2) − (+7) =

p (+15) ∙ (+16) = p (−12) ∙ (+3) = p (+7) − (+4) =

q (−19) ∙ (−5) = q (+6) ∙ (−11) = q (−2) ∙ (+8) =

r (−1) ∙ (−14) = r (+14) + (+18) = r (+13) − (−18) =

s (−10) ∙ (+9) = s (−20) ∙ (+12) = s (−1) ∙ (+4) =

t (+15) ∙ (+2) = t (+2) − (+18) = t (+2) ∙ (−5) =

u (−11) ∙ (+11) = u (+14) ∙ (+6) = u (−8) + (+1) =

v (−1) ∙ (−11) = v (−11) + (0) = v (−13) + (+10) =

w (−9) ∙ (−20) = w (+2) − (+17) = w (+8) ∙ (−9) =

x (+8) ∙ (−10) = x (−11) − (−6) = x (+9) ∙ (−2) =

(+4) ∙ (+3) =

(7)

a a (−6) ∙ (−3) = a (+1) − (+2) =

b (+9) ∙ (+6) = b (+8) − (−10) = b (−1) ∙ (0) =

c (+6) ∙ (−1) = c (−4) + (0) = c (−7) ∙ (+3) =

d (+4) ∙ (−3) = d (−2) ∙ (+1) = d (+1) ∙ (−5) =

e (+10) ∙ (−1) = e (+7) ∙ (+10) = e (−8) ∙ (+5) =

f (−8) ∙ (−6) = f (+5) ∙ (+10) = f (−1) ∙ (−10) =

g (+3) ∙ (+6) = g (−8) ∙ (+10) = g (−5) + (+3) =

h (−10) ∙ (−2) = h (+5) ∙ (−3) = h (+6) + (+4) =

i (−10) ∙ (+7) = i (+7) ∙ (+8) = i (−9) − (−7) =

j (+10) ∙ (−8) = j (+4) − (−2) = j (−7) − (+6) =

k (+3) ∙ (+4) = k (+3) − (+10) = k (−10) − (+6) =

l (+3) ∙ (+9) = l (−9) ∙ (−2) = l (−2) ∙ (−10) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−17) ∙ (−10) = m (+1) + (+16) = m (+14) ∙ (+4) =

n (−16) ∙ (0) = n (−9) ∙ (+14) = n (+16) ∙ (−17) =

o (−10) ∙ (−7) = o (+2) − (−2) = o (−15) − (−9) =

p (−1) ∙ (−5) = p (+15) − (+8) = p (+4) ∙ (−14) =

q (+1) ∙ (−12) = q (+3) ∙ (+7) = q (−19) ∙ (+11) =

r (+19) ∙ (−3) = r (+14) ∙ (+19) = r (+8) ∙ (−2) =

s (+6) ∙ (−2) = s (+8) ∙ (−7) = s (+16) + (+14) =

t (+15) ∙ (−19) = t (−16) ∙ (−11) = t (+17) ∙ (+16) =

u (+20) ∙ (−12) = u (+18) − (+5) = u (−18) + (+16) =

v (−12) ∙ (+3) = v (+17) ∙ (+8) = v (−16) ∙ (−8) =

w (+18) ∙ (+14) = w (−1) ∙ (+5) = w (0) + (−15) =

x (−3) ∙ (+19) = x (−15) − (+19) = x (+5) + (−2) =

(+4) ∙ (+3) =

(8)

a a (−9) + (−2) = a (−4) ∙ (+10) =

b (−9) ∙ (+6) = b (+9) ∙ (−4) = b (−1) ∙ (+3) =

c (+4) ∙ (−8) = c (−9) + (+3) = c (−1) ∙ (−7) =

d (+8) ∙ (+8) = d (−3) − (+9) = d (+10) − (−5) =

e (0) ∙ (−5) = e (+5) ∙ (−10) = e (−8) − (−8) =

f (0) ∙ (+10) = f (−7) + (+6) = f (+8) − (−6) =

g (+7) ∙ (−7) = g (−4) ∙ (−4) = g (−10) ∙ (+5) =

h (−1) ∙ (+5) = h (+10) ∙ (+7) = h (+6) − (−10) =

i (−8) ∙ (−7) = i (+9) − (+9) = i (+2) + (−5) =

j (+3) ∙ (+10) = j (−10) ∙ (+1) = j (+10) + (−7) =

k (−6) ∙ (0) = k (−2) ∙ (−1) = k (+6) − (−6) =

l (−9) ∙ (+8) = l (−6) − (+4) = l (+1) + (+4) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+9) ∙ (−9) = m (+11) ∙ (−17) = m (−2) ∙ (+14) =

n (−9) ∙ (−2) = n (−17) + (−18) = n (−16) ∙ (+1) =

o (−10) ∙ (−7) = o (+5) ∙ (+18) = o (−20) + (+13) =

p (−11) ∙ (+17) = p (−13) + (−7) = p (+9) + (+14) =

q (+9) ∙ (+16) = q (−17) − (−5) = q (−16) + (+9) =

r (−1) ∙ (−15) = r (+2) + (+19) = r (+18) + (+12) =

s (+6) ∙ (−19) = s (+16) − (−9) = s (+16) − (+19) =

t (+9) ∙ (+13) = t (−17) ∙ (+16) = t (−4) − (+11) =

u (−14) ∙ (+11) = u (+5) + (−7) = u (+7) − (+13) =

v (+2) ∙ (+5) = v (−8) + (−12) = v (+2) ∙ (+14) =

w (+11) ∙ (+15) = w (−10) ∙ (−7) = w (+10) − (−4) =

x (+17) ∙ (−19) = x (+8) ∙ (+10) = x (+20) − (+13) =

(+4) ∙ (+3) =

(9)

a a (+5) ∙ (−3) = a (−10) ∙ (+10) =

b (+8) ∙ (+6) = b (+6) ∙ (−8) = b (−4) ∙ (+9) =

c (+7) ∙ (−2) = c (−8) − (+7) = c (+1) + (−9) =

d (−5) ∙ (−10) = d (−6) ∙ (+2) = d (−3) ∙ (−3) =

e (+5) ∙ (+9) = e (0) − (+8) = e (+5) + (−9) =

f (+10) ∙ (+6) = f (−9) − (−8) = f (−1) + (−3) =

g (+9) ∙ (+3) = g (+3) ∙ (−4) = g (−1) + (+10) =

h (−3) ∙ (−1) = h (−5) − (+10) = h (+4) ∙ (+1) =

i (−9) ∙ (−6) = i (−7) + (−10) = i (+8) ∙ (+3) =

j (−3) ∙ (−2) = j (−8) ∙ (+10) = j (+2) − (−2) =

k (+7) ∙ (−9) = k (+8) ∙ (+9) = k (−3) + (−1) =

l (+10) ∙ (−4) = l (−4) + (−2) = l (−8) ∙ (+3) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−17) ∙ (−15) = m (−3) − (+20) = m (−20) + (−20) =

n (−20) ∙ (−17) = n (−20) ∙ (−4) = n (+15) + (+12) =

o (+8) ∙ (+15) = o (+5) ∙ (+16) = o (−11) + (−6) =

p (+4) ∙ (+20) = p (+11) − (0) = p (−2) ∙ (−14) =

q (+19) ∙ (+1) = q (+12) − (+9) = q (−7) − (−2) =

r (+20) ∙ (−5) = r (−8) + (0) = r (+1) ∙ (−7) =

s (−12) ∙ (+3) = s (−19) ∙ (+1) = s (−16) + (−19) =

t (−18) ∙ (+17) = t (−5) ∙ (−17) = t (−20) − (+2) =

u (+16) ∙ (+14) = u (+6) + (+9) = u (+3) ∙ (+9) =

v (−20) ∙ (+2) = v (+10) ∙ (+12) = v (+14) ∙ (+5) =

w (+4) ∙ (−6) = w (−12) + (+5) = w (−15) ∙ (+1) =

x (−11) ∙ (+7) = x (−4) + (−17) = x (+4) − (+9) =

(+4) ∙ (+3) =

(10)

a a (−4) + (−9) = a (+5) + (−5) =

b (−2) ∙ (−3) = b (0) ∙ (0) = b (+6) ∙ (+4) =

c (−3) ∙ (+8) = c (0) − (0) = c (+8) − (+6) =

d (−3) ∙ (+2) = d (+1) ∙ (−3) = d (+4) ∙ (−2) =

e (−10) ∙ (0) = e (−7) ∙ (−1) = e (−5) ∙ (−9) =

f (−10) ∙ (+8) = f (0) ∙ (−4) = f (−5) ∙ (+1) =

g (+4) ∙ (+2) = g (−2) ∙ (+7) = g (+2) ∙ (−3) =

h (−10) ∙ (−8) = h (−10) ∙ (−6) = h (−4) + (+9) =

i (+6) ∙ (−3) = i (+2) ∙ (+2) = i (−5) ∙ (+5) =

j (+2) ∙ (+3) = j (−10) + (0) = j (0) ∙ (+1) =

k (+4) ∙ (−3) = k (0) ∙ (+7) = k (+10) ∙ (−7) =

l (−8) ∙ (+1) = l (+8) ∙ (−7) = l (+9) ∙ (−6) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−14) ∙ (−9) = m (+2) ∙ (+12) = m (0) ∙ (−10) =

n (+6) ∙ (−10) = n (+3) ∙ (−1) = n (+3) ∙ (−17) =

o (−7) ∙ (−2) = o (−17) + (+18) = o (−18) ∙ (+17) =

p (−1) ∙ (+16) = p (−16) ∙ (+5) = p (0) − (−3) =

q (+2) ∙ (−13) = q (−5) ∙ (+20) = q (−13) ∙ (−4) =

r (−11) ∙ (+13) = r (−15) + (+4) = r (−3) + (−17) =

s (−17) ∙ (+2) = s (−13) + (+5) = s (−15) ∙ (+15) =

t (+13) ∙ (−13) = t (−20) + (−19) = t (−7) ∙ (−20) =

u (+3) ∙ (+14) = u (+12) + (+5) = u (+10) − (+14) =

v (−12) ∙ (−12) = v (−7) + (+6) = v (−4) ∙ (+4) =

w (+4) ∙ (+17) = w (−20) + (+7) = w (−2) ∙ (+15) =

x (−20) ∙ (−1) = x (−17) ∙ (+9) = x (0) ∙ (−16) =

(+4) ∙ (+3) =

(11)

a a (−1) − (−3) = a (−7) ∙ (+5) =

b (0) ∙ (−2) = b (+8) + (−6) = b (+9) − (−9) =

c (−7) ∙ (+3) = c (+8) − (−7) = c (−4) ∙ (−4) =

d (−7) ∙ (−6) = d (0) ∙ (+3) = d (−10) ∙ (−8) =

e (−4) ∙ (−8) = e (+10) ∙ (+8) = e (−6) ∙ (−9) =

f (+1) ∙ (−1) = f (+2) + (+1) = f (+8) − (+6) =

g (−7) ∙ (+7) = g (−7) − (+4) = g (+10) − (−9) =

h (−7) ∙ (−8) = h (−9) + (+8) = h (+8) + (+1) =

i (+7) ∙ (+7) = i (−7) + (−2) = i (+4) − (−1) =

j (−6) ∙ (−8) = j (−10) ∙ (+5) = j (+6) − (−9) =

k (+8) ∙ (−4) = k (−8) ∙ (−10) = k (−2) − (+7) =

l (+3) ∙ (−9) = l (−5) + (−7) = l (+7) ∙ (0) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−10) ∙ (−17) = m (+12) − (−17) = m (−17) ∙ (+7) =

n (+17) ∙ (−11) = n (+19) ∙ (+19) = n (−19) ∙ (+3) =

o (+12) ∙ (+4) = o (−2) ∙ (−8) = o (−2) + (+6) =

p (+7) ∙ (−16) = p (−15) ∙ (−14) = p (+17) ∙ (−10) =

q (+5) ∙ (+13) = q (0) ∙ (−16) = q (−14) ∙ (−3) =

r (+19) ∙ (−9) = r (+18) + (−2) = r (+2) ∙ (+5) =

s (+14) ∙ (−2) = s (+4) − (−12) = s (+5) + (−20) =

t (−14) ∙ (+19) = t (−1) − (+14) = t (+8) ∙ (−12) =

u (+20) ∙ (−13) = u (−11) ∙ (+12) = u (+13) − (+3) =

v (0) ∙ (+19) = v (−13) + (−7) = v (+5) ∙ (+8) =

w (−4) ∙ (+17) = w (−9) − (+11) = w (+3) ∙ (+6) =

x (+2) ∙ (−9) = x (+6) − (−15) = x (+19) ∙ (−8) =

(+4) ∙ (+3) =

(12)

a a (−9) + (−1) = a (+9) ∙ (+6) =

b (−8) ∙ (+2) = b (+9) ∙ (−1) = b (−4) + (+5) =

c (+4) ∙ (+4) = c (+2) − (−7) = c (+1) − (+1) =

d (−6) ∙ (−8) = d (+3) − (+1) = d (+3) ∙ (−8) =

e (+7) ∙ (−10) = e (+3) + (+3) = e (+10) + (−1) =

f (+6) ∙ (−10) = f (+3) ∙ (+5) = f (+4) − (+3) =

g (−6) ∙ (−5) = g (−6) + (−1) = g (−9) ∙ (+10) =

h (−6) ∙ (−7) = h (−10) − (−1) = h (−3) ∙ (−5) =

i (+9) ∙ (+6) = i (+10) ∙ (0) = i (−3) ∙ (+9) =

j (−1) ∙ (−10) = j (−2) ∙ (−6) = j (+6) ∙ (−7) =

k (−7) ∙ (+1) = k (+3) ∙ (−8) = k (−1) ∙ (−4) =

l (+6) ∙ (−2) = l (+2) + (+8) = l (−4) ∙ (−3) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+4) ∙ (+4) = m (−5) ∙ (+2) = m (−4) − (+2) =

n (+1) ∙ (+7) = n (−4) ∙ (+13) = n (+8) ∙ (−5) =

o (−14) ∙ (+1) = o (−6) + (+17) = o (+8) − (−19) =

p (+7) ∙ (+20) = p (+4) ∙ (+9) = p (0) ∙ (+1) =

q (−20) ∙ (+14) = q (+11) ∙ (+9) = q (−7) − (+4) =

r (+8) ∙ (+4) = r (−16) − (+9) = r (−6) − (+20) =

s (−10) ∙ (−13) = s (+13) − (+1) = s (−18) ∙ (−1) =

t (+6) ∙ (+12) = t (−15) + (−9) = t (+2) ∙ (−1) =

u (−9) ∙ (+16) = u (−15) − (+10) = u (−4) ∙ (+20) =

v (−9) ∙ (+5) = v (−11) − (−7) = v (+6) ∙ (+10) =

w (−2) ∙ (+8) = w (−8) ∙ (+14) = w (+7) ∙ (+8) =

x (+15) ∙ (+7) = x (−12) ∙ (−13) = x (−8) ∙ (+10) =

(+4) ∙ (+3) =

(13)

a a (−7) + (+1) = a (+1) − (−5) =

b (+10) ∙ (+4) = b (+4) + (+9) = b (+3) ∙ (+1) =

c (−3) ∙ (−1) = c (−4) ∙ (+2) = c (−10) ∙ (−8) =

d (0) ∙ (+6) = d (−4) + (+6) = d (0) + (−9) =

e (0) ∙ (−1) = e (+1) + (−4) = e (+10) ∙ (−10) =

f (−2) ∙ (−5) = f (+4) ∙ (+4) = f (−6) ∙ (+6) =

g (−7) ∙ (−9) = g (−6) − (−3) = g (−8) + (+4) =

h (−10) ∙ (−3) = h (+8) + (+8) = h (+3) + (−10) =

i (+8) ∙ (+4) = i (−6) + (+3) = i (−8) + (−2) =

j (−3) ∙ (−6) = j (+9) ∙ (+3) = j (0) − (−2) =

k (+1) ∙ (−7) = k (−3) + (+9) = k (−4) + (−6) =

l (−8) ∙ (+8) = l (−3) − (+4) = l (−4) ∙ (−3) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−12) ∙ (−15) = m (−20) − (+14) = m (+18) − (+3) =

n (+17) ∙ (−7) = n (−7) + (−5) = n (+6) ∙ (−12) =

o (+9) ∙ (−18) = o (−16) − (−20) = o (+9) ∙ (−8) =

p (−2) ∙ (+10) = p (+10) + (−20) = p (+4) ∙ (−12) =

q (+13) ∙ (−7) = q (+13) ∙ (+9) = q (−15) ∙ (+7) =

r (−2) ∙ (−14) = r (+20) ∙ (−5) = r (+3) ∙ (+19) =

s (−14) ∙ (+16) = s (+18) ∙ (+9) = s (+5) − (+13) =

t (+10) ∙ (+9) = t (+3) − (+9) = t (+4) ∙ (−7) =

u (−14) ∙ (−2) = u (+17) − (+20) = u (+5) + (+11) =

v (+5) ∙ (−19) = v (−1) + (−9) = v (+20) ∙ (−19) =

w (+5) ∙ (−19) = w (+20) ∙ (+19) = w (−3) − (−16) =

x (+4) ∙ (−17) = x (−17) ∙ (+1) = x (−13) ∙ (−19) =

(+4) ∙ (+3) =

(14)

a a (0) ∙ (−10) = a (+2) ∙ (−7) =

b (−4) ∙ (0) = b (+5) ∙ (−3) = b (+1) ∙ (+6) =

c (−8) ∙ (+2) = c (+5) ∙ (+7) = c (+9) + (+1) =

d (+10) ∙ (+5) = d (−8) ∙ (+1) = d (+10) + (−3) =

e (−10) ∙ (−5) = e (+2) ∙ (−7) = e (−2) ∙ (+2) =

f (−4) ∙ (0) = f (−10) ∙ (−3) = f (−3) ∙ (−9) =

g (−9) ∙ (−1) = g (−2) ∙ (−6) = g (−6) + (+4) =

h (+5) ∙ (+3) = h (+6) + (−5) = h (−8) ∙ (+8) =

i (−5) ∙ (+2) = i (+2) − (0) = i (−10) ∙ (−9) =

j (−1) ∙ (+9) = j (−7) + (−10) = j (−8) ∙ (0) =

k (−5) ∙ (−2) = k (+4) + (−10) = k (+2) ∙ (−8) =

l (−5) ∙ (+1) = l (−4) − (+3) = l (+3) − (−7) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+20) ∙ (+9) = m (−16) ∙ (+20) = m (−15) ∙ (−6) =

n (+7) ∙ (−5) = n (−7) − (+17) = n (−11) ∙ (−11) =

o (−3) ∙ (−16) = o (−16) − (−2) = o (+10) − (−15) =

p (+9) ∙ (−13) = p (+2) ∙ (−8) = p (−17) ∙ (−20) =

q (+7) ∙ (−15) = q (−3) − (+12) = q (−14) ∙ (+9) =

r (−7) ∙ (−7) = r (−12) + (+16) = r (−14) ∙ (+20) =

s (−9) ∙ (+7) = s (−11) + (−11) = s (+19) + (−17) =

t (−2) ∙ (−13) = t (+20) ∙ (+8) = t (+12) − (+4) =

u (+7) ∙ (+5) = u (+12) ∙ (+9) = u (−10) ∙ (−19) =

v (−14) ∙ (+18) = v (+3) − (+18) = v (−16) ∙ (−9) =

w (+5) ∙ (0) = w (−15) + (−12) = w (+3) + (−1) =

x (−11) ∙ (−5) = x (−8) + (+10) = x (+14) ∙ (−13) =

(+4) ∙ (+3) =

(15)

a a (−3) + (+2) = a (+1) − (+8) =

b (+7) ∙ (+10) = b (+8) ∙ (+2) = b (−7) ∙ (+4) =

c (−4) ∙ (0) = c (−7) − (−3) = c (0) + (+10) =

d (0) ∙ (+9) = d (−3) ∙ (+6) = d (−3) ∙ (0) =

e (+8) ∙ (−7) = e (0) − (0) = e (−8) + (−2) =

f (+2) ∙ (+5) = f (−3) − (−8) = f (+7) ∙ (−4) =

g (−3) ∙ (+6) = g (−6) − (+2) = g (+7) − (+7) =

h (+8) ∙ (−8) = h (+7) + (+10) = h (+10) − (−4) =

i (+9) ∙ (−3) = i (−8) + (−1) = i (−5) ∙ (−3) =

j (+8) ∙ (+6) = j (−8) ∙ (−9) = j (+9) + (−10) =

k (+9) ∙ (−10) = k (−6) − (−6) = k (−4) − (+7) =

l (0) ∙ (+9) = l (−4) ∙ (−1) = l (−6) + (+6) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+3) ∙ (−13) = m (+19) ∙ (−1) = m (−2) + (+10) =

n (−11) ∙ (−17) = n (−15) ∙ (−18) = n (+3) + (−14) =

o (+4) ∙ (+9) = o (−16) + (+8) = o (+5) − (+8) =

p (−10) ∙ (−2) = p (+3) − (+1) = p (+8) ∙ (−20) =

q (+14) ∙ (+4) = q (−9) ∙ (+6) = q (+20) + (+12) =

r (+7) ∙ (+2) = r (+17) − (+19) = r (−6) − (+13) =

s (+2) ∙ (+4) = s (−8) ∙ (−16) = s (−14) ∙ (−5) =

t (−17) ∙ (+7) = t (−13) ∙ (+4) = t (−4) ∙ (−9) =

u (−18) ∙ (+11) = u (+1) ∙ (−2) = u (−13) − (+12) =

v (−2) ∙ (+5) = v (−14) + (+1) = v (−17) ∙ (+9) =

w (−13) ∙ (+6) = w (−3) + (+6) = w (−15) + (−20) =

x (−6) ∙ (+15) = x (+17) − (−19) = x (+10) + (+6) =

(+4) ∙ (+3) =

(16)

a a (+10) ∙ (−9) = a (−4) ∙ (−2) =

b (−3) ∙ (0) = b (+3) + (+10) = b (−5) − (+8) =

c (+6) ∙ (+10) = c (−6) ∙ (+1) = c (+7) − (−5) =

d (+6) ∙ (+5) = d (+6) + (+1) = d (+9) ∙ (−2) =

e (−6) ∙ (+8) = e (−7) − (+8) = e (−7) + (−7) =

f (−7) ∙ (−5) = f (+3) ∙ (+6) = f (−7) + (−7) =

g (+10) ∙ (−8) = g (+10) ∙ (+1) = g (+8) − (−5) =

h (+7) ∙ (0) = h (+6) − (0) = h (0) ∙ (+2) =

i (+9) ∙ (−5) = i (+2) + (−5) = i (+9) ∙ (−7) =

j (−1) ∙ (−5) = j (−2) − (+4) = j (+7) − (+1) =

k (−4) ∙ (−2) = k (+1) − (−6) = k (+7) ∙ (−5) =

l (−2) ∙ (+10) = l (−3) ∙ (−8) = l (0) + (−1) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+10) ∙ (+10) = m (+16) ∙ (−9) = m (−8) ∙ (−2) =

n (+2) ∙ (−18) = n (+15) − (−3) = n (−2) ∙ (+14) =

o (−14) ∙ (−6) = o (+4) + (+11) = o (+13) ∙ (+7) =

p (−2) ∙ (+16) = p (+12) + (+10) = p (+20) − (+12) =

q (−4) ∙ (+1) = q (+3) ∙ (−5) = q (+3) ∙ (−2) =

r (−18) ∙ (+9) = r (−13) − (−4) = r (−5) ∙ (−6) =

s (+1) ∙ (−11) = s (+2) − (−4) = s (+17) + (−7) =

t (−12) ∙ (−15) = t (+2) + (+19) = t (+1) − (−11) =

u (−13) ∙ (−17) = u (+16) + (−19) = u (−1) ∙ (+17) =

v (+11) ∙ (−3) = v (+13) + (+14) = v (−18) + (−6) =

w (+6) ∙ (+9) = w (+11) − (−13) = w (+11) ∙ (+19) =

x (+3) ∙ (+16) = x (+15) − (−16) = x (+11) − (−7) =

(+4) ∙ (+3) =

(17)

a a (+6) + (−8) = a (−4) ∙ (−1) =

b (−4) ∙ (+8) = b (−4) ∙ (−2) = b (+4) ∙ (+10) =

c (−1) ∙ (+1) = c (+8) ∙ (+4) = c (−2) + (0) =

d (+10) ∙ (+10) = d (+4) + (−1) = d (+8) − (+4) =

e (+2) ∙ (+4) = e (+10) ∙ (−4) = e (−4) ∙ (+10) =

f (+1) ∙ (−3) = f (−4) ∙ (−1) = f (+7) + (+8) =

g (−2) ∙ (+1) = g (+9) ∙ (+1) = g (−5) ∙ (+4) =

h (−4) ∙ (−7) = h (+4) + (+2) = h (+8) − (−9) =

i (−10) ∙ (+1) = i (+8) ∙ (−1) = i (−9) − (−8) =

j (−9) ∙ (−3) = j (+5) − (−8) = j (+8) + (−6) =

k (+8) ∙ (−4) = k (−3) − (−2) = k (+5) + (+4) =

l (+6) ∙ (−7) = l (−5) ∙ (+3) = l (−8) + (−5) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+5) ∙ (−4) = m (−13) − (−16) = m (−13) + (−13) =

n (+2) ∙ (+3) = n (+13) + (+2) = n (−5) ∙ (−1) =

o (−6) ∙ (+1) = o (+9) + (0) = o (+3) − (+10) =

p (−11) ∙ (0) = p (−8) + (−1) = p (+7) − (−9) =

q (−7) ∙ (+10) = q (+3) ∙ (+11) = q (−16) ∙ (+19) =

r (−17) ∙ (−6) = r (+3) − (+18) = r (+17) ∙ (−18) =

s (−14) ∙ (−12) = s (−16) ∙ (+12) = s (+14) − (+7) =

t (+4) ∙ (0) = t (+8) ∙ (−9) = t (+7) ∙ (−8) =

u (+17) ∙ (+3) = u (−20) + (−8) = u (−14) + (+6) =

v (+13) ∙ (−12) = v (−17) ∙ (+14) = v (−4) − (+18) =

w (+10) ∙ (−11) = w (−6) ∙ (+8) = w (−16) − (+7) =

x (+15) ∙ (+15) = x (+11) ∙ (−4) = x (−3) ∙ (−16) =

(+4) ∙ (+3) =

(18)

a a (+3) − (−5) = a (−9) ∙ (+6) =

b (−3) ∙ (−10) = b (−4) + (−2) = b (−10) − (−4) =

c (−3) ∙ (+5) = c (0) + (−4) = c (+9) ∙ (−7) =

d (−7) ∙ (−7) = d (+10) + (+3) = d (+5) − (−5) =

e (+1) ∙ (+6) = e (−3) ∙ (−8) = e (−3) ∙ (−10) =

f (+10) ∙ (0) = f (+3) + (−6) = f (−8) ∙ (+2) =

g (+8) ∙ (+2) = g (−7) ∙ (−1) = g (0) − (+10) =

h (+7) ∙ (−3) = h (0) + (+1) = h (−3) − (+9) =

i (−5) ∙ (−3) = i (−2) + (+5) = i (+5) + (+4) =

j (+8) ∙ (+10) = j (+10) − (+3) = j (+1) − (−5) =

k (+5) ∙ (−6) = k (+6) ∙ (−3) = k (−2) ∙ (−2) =

l (+1) ∙ (−4) = l (+4) ∙ (−5) = l (−3) − (+1) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+20) ∙ (−8) = m (+1) ∙ (+1) = m (+15) ∙ (+12) =

n (−5) ∙ (−2) = n (+10) ∙ (−1) = n (−14) − (−20) =

o (+14) ∙ (+17) = o (+9) + (+2) = o (−17) − (0) =

p (+13) ∙ (−12) = p (+1) − (−9) = p (−15) ∙ (+19) =

q (+13) ∙ (−3) = q (−17) − (−18) = q (−1) − (−20) =

r (−18) ∙ (+8) = r (+12) − (+8) = r (−17) ∙ (−11) =

s (+5) ∙ (+7) = s (−8) ∙ (−4) = s (+18) + (0) =

t (+6) ∙ (−6) = t (+17) ∙ (−9) = t (−18) ∙ (−16) =

u (−12) ∙ (−6) = u (0) ∙ (−20) = u (+17) − (−1) =

v (+2) ∙ (+19) = v (−3) ∙ (−19) = v (−14) − (−5) =

w (+6) ∙ (+3) = w (−17) ∙ (+17) = w (−18) + (+17) =

x (+5) ∙ (+17) = x (−14) ∙ (−10) = x (+20) ∙ (−11) =

(+4) ∙ (+3) =

(19)

a a (−5) + (−10) = a (+5) ∙ (−3) =

b (−1) ∙ (+4) = b (−3) ∙ (+6) = b (−5) − (0) =

c (−1) ∙ (−3) = c (+9) − (−3) = c (+10) + (+7) =

d (−9) ∙ (−3) = d (−9) + (+1) = d (−10) ∙ (−6) =

e (+3) ∙ (+4) = e (−10) ∙ (−10) = e (+6) + (−8) =

f (0) ∙ (−9) = f (−3) + (+10) = f (−8) ∙ (+3) =

g (−8) ∙ (+7) = g (+7) ∙ (+5) = g (+3) + (+7) =

h (−10) ∙ (−3) = h (−7) + (−5) = h (−8) ∙ (−2) =

i (−9) ∙ (−7) = i (+3) ∙ (−4) = i (+1) − (−8) =

j (−5) ∙ (−7) = j (+2) ∙ (+6) = j (+3) ∙ (+5) =

k (+9) ∙ (−9) = k (+8) − (−3) = k (+5) ∙ (+10) =

l (−9) ∙ (−5) = l (+2) ∙ (−6) = l (−6) ∙ (+1) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−16) ∙ (+17) = m (+16) ∙ (+12) = m (−3) − (+11) =

n (+6) ∙ (+19) = n (−13) − (+3) = n (+20) + (−1) =

o (+2) ∙ (−7) = o (+19) ∙ (−10) = o (−10) − (+14) =

p (−13) ∙ (−20) = p (−15) ∙ (+2) = p (−20) ∙ (+8) =

q (+19) ∙ (+6) = q (+5) ∙ (−8) = q (−16) + (−2) =

r (+1) ∙ (−19) = r (−13) ∙ (+14) = r (−9) + (+18) =

s (+14) ∙ (+11) = s (−17) ∙ (−9) = s (+4) ∙ (−5) =

t (+18) ∙ (+14) = t (−14) + (−3) = t (+6) − (+1) =

u (+3) ∙ (+13) = u (−10) + (−10) = u (−8) ∙ (+7) =

v (+5) ∙ (+2) = v (−5) ∙ (−12) = v (+5) ∙ (−13) =

w (−10) ∙ (−15) = w (+13) − (−12) = w (−20) ∙ (−14) =

x (+5) ∙ (+15) = x (0) ∙ (−9) = x (−18) + (−18) =

(+4) ∙ (+3) =

(20)

a a (+5) ∙ (+6) = a (+8) + (+7) =

b (+4) ∙ (−2) = b (−2) + (−3) = b (−7) ∙ (−10) =

c (+6) ∙ (+10) = c (−4) − (0) = c (−8) − (−2) =

d (+2) ∙ (+3) = d (−4) ∙ (+9) = d (+3) − (+10) =

e (−7) ∙ (−6) = e (+10) + (+7) = e (−10) ∙ (+1) =

f (−5) ∙ (+8) = f (+7) + (−5) = f (−8) ∙ (−3) =

g (−3) ∙ (−5) = g (+1) − (−5) = g (−4) ∙ (+2) =

h (+2) ∙ (0) = h (+7) − (+9) = h (+6) ∙ (+8) =

i (−8) ∙ (−4) = i (+2) ∙ (−6) = i (+7) + (+8) =

j (+4) ∙ (+10) = j (0) + (−1) = j (−6) ∙ (+1) =

k (+4) ∙ (−3) = k (−6) ∙ (0) = k (+4) ∙ (−9) =

l (−8) ∙ (−1) = l (+3) ∙ (−9) = l (−4) + (+7) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−14) ∙ (−17) = m (+16) + (−18) = m (+20) + (−19) =

n (+3) ∙ (+7) = n (+18) ∙ (−2) = n (−9) − (−17) =

o (−10) ∙ (−11) = o (−3) ∙ (−17) = o (+10) ∙ (+1) =

p (−19) ∙ (−17) = p (−10) ∙ (−6) = p (+14) ∙ (+1) =

q (+9) ∙ (−14) = q (+7) ∙ (+17) = q (+8) − (−12) =

r (−11) ∙ (+6) = r (+19) ∙ (+15) = r (−10) ∙ (+13) =

s (−10) ∙ (−11) = s (+13) ∙ (+7) = s (+20) ∙ (−18) =

t (+8) ∙ (+16) = t (−10) + (−13) = t (+2) ∙ (−1) =

u (+4) ∙ (−3) = u (+9) ∙ (−14) = u (+12) ∙ (−2) =

v (−7) ∙ (+18) = v (+16) + (+12) = v (−6) ∙ (−5) =

w (+8) ∙ (+10) = w (−15) + (−18) = w (−20) ∙ (+4) =

x (+13) ∙ (+16) = x (−1) ∙ (+19) = x (+6) − (−9) =

(+4) ∙ (+3) =

(21)

a a (−4) + (−2) = a (+8) + (−9) =

b (+5) ∙ (−4) = b (+7) − (+7) = b (0) ∙ (−3) =

c (+2) ∙ (−6) = c (−7) + (−10) = c (−8) ∙ (+8) =

d (+1) ∙ (+4) = d (+3) + (−1) = d (+7) ∙ (−2) =

e (+9) ∙ (−1) = e (+1) ∙ (−1) = e (0) ∙ (−5) =

f (+3) ∙ (−5) = f (+3) + (−5) = f (+2) ∙ (−9) =

g (+2) ∙ (+10) = g (−3) ∙ (−6) = g (+1) ∙ (+1) =

h (+9) ∙ (+2) = h (+5) ∙ (+10) = h (+1) + (−5) =

i (+4) ∙ (−9) = i (−4) − (0) = i (+7) ∙ (+4) =

j (−9) ∙ (+6) = j (−8) − (−10) = j (−1) ∙ (+4) =

k (−2) ∙ (+1) = k (+1) ∙ (+8) = k (+8) − (+5) =

l (−7) ∙ (0) = l (−5) + (+3) = l (−9) ∙ (−9) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−3) ∙ (+19) = m (−16) − (−16) = m (−4) ∙ (−2) =

n (+2) ∙ (+18) = n (+19) ∙ (+18) = n (+17) − (+1) =

o (−14) ∙ (−18) = o (+12) − (−13) = o (−9) ∙ (−18) =

p (+19) ∙ (−20) = p (−8) − (−15) = p (−6) − (+13) =

q (−4) ∙ (+8) = q (−6) ∙ (+11) = q (−18) ∙ (+18) =

r (0) ∙ (+18) = r (−6) − (−19) = r (−1) ∙ (−16) =

s (−11) ∙ (+19) = s (+19) + (+8) = s (−14) ∙ (+8) =

t (−19) ∙ (−18) = t (+19) − (−12) = t (+3) + (+19) =

u (+2) ∙ (−5) = u (+17) + (−9) = u (−7) ∙ (+9) =

v (−8) ∙ (+15) = v (−12) ∙ (−19) = v (+14) ∙ (−15) =

w (−14) ∙ (−15) = w (+6) ∙ (+18) = w (−8) ∙ (+11) =

x (−8) ∙ (+16) = x (−11) ∙ (+7) = x (−12) − (+12) =

(+4) ∙ (+3) =

(22)

a a (+5) ∙ (−9) = a (−10) − (+10) =

b (+5) ∙ (−6) = b (+1) ∙ (−3) = b (−3) − (+1) =

c (+8) ∙ (+10) = c (−4) + (−4) = c (−5) ∙ (−10) =

d (+10) ∙ (+1) = d (−1) ∙ (+3) = d (−9) ∙ (+7) =

e (+9) ∙ (−7) = e (+8) ∙ (+7) = e (−9) − (−7) =

f (+4) ∙ (+9) = f (+9) ∙ (−3) = f (0) + (−7) =

g (−4) ∙ (−10) = g (−4) ∙ (−5) = g (+1) ∙ (+1) =

h (−7) ∙ (−8) = h (+7) ∙ (0) = h (−7) ∙ (+7) =

i (−7) ∙ (+5) = i (−7) ∙ (+4) = i (−9) ∙ (−10) =

j (+3) ∙ (+9) = j (+5) + (+10) = j (+8) ∙ (0) =

k (−7) ∙ (+4) = k (−6) + (+1) = k (−10) ∙ (−7) =

l (+7) ∙ (−2) = l (+3) − (−3) = l (−7) ∙ (+6) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+6) ∙ (−2) = m (+7) − (+3) = m (+11) ∙ (−12) =

n (+12) ∙ (+13) = n (+19) ∙ (+12) = n (−18) − (−19) =

o (+6) ∙ (−9) = o (−9) ∙ (−6) = o (+9) ∙ (+3) =

p (−11) ∙ (−3) = p (−10) ∙ (−19) = p (+1) ∙ (+1) =

q (−13) ∙ (−16) = q (−13) ∙ (−5) = q (+1) − (−7) =

r (+7) ∙ (−13) = r (−18) − (−5) = r (+9) ∙ (−15) =

s (+4) ∙ (−9) = s (−19) ∙ (−6) = s (+19) ∙ (+16) =

t (+1) ∙ (−17) = t (−5) − (+17) = t (+19) + (−16) =

u (−6) ∙ (−5) = u (+15) ∙ (+9) = u (−2) + (−12) =

v (−11) ∙ (−6) = v (+17) ∙ (0) = v (+18) ∙ (−2) =

w (−4) ∙ (−11) = w (−9) − (+4) = w (−20) ∙ (+19) =

x (+17) ∙ (−11) = x (+3) + (+12) = x (−1) ∙ (−13) =

(+4) ∙ (+3) =

(23)

a a (−3) ∙ (+5) = a (+5) + (−5) =

b (+3) ∙ (+5) = b (−10) + (+4) = b (−5) − (+2) =

c (−10) ∙ (−9) = c (−1) + (+9) = c (+3) ∙ (+1) =

d (−5) ∙ (+1) = d (0) − (+7) = d (−4) ∙ (−3) =

e (−9) ∙ (−10) = e (−6) + (−10) = e (+6) − (+10) =

f (−4) ∙ (+5) = f (−9) − (+5) = f (−2) − (−7) =

g (−3) ∙ (−3) = g (+5) ∙ (−3) = g (−7) ∙ (−5) =

h (+2) ∙ (−5) = h (+7) ∙ (+10) = h (−6) + (+4) =

i (−1) ∙ (−6) = i (−10) ∙ (−7) = i (+7) ∙ (+8) =

j (0) ∙ (0) = j (+7) − (+8) = j (−8) ∙ (+4) =

k (−3) ∙ (+10) = k (+4) ∙ (−10) = k (0) ∙ (−1) =

l (−9) ∙ (−1) = l (−9) − (+1) = l (−10) − (−10) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−11) ∙ (−19) = m (−4) − (+3) = m (−13) ∙ (−1) =

n (+6) ∙ (−10) = n (−1) ∙ (0) = n (+10) ∙ (+11) =

o (−10) ∙ (+5) = o (+20) ∙ (+7) = o (0) − (+11) =

p (−12) ∙ (+11) = p (−15) ∙ (+1) = p (−16) ∙ (+2) =

q (−16) ∙ (−2) = q (+1) ∙ (−10) = q (−2) ∙ (−19) =

r (−4) ∙ (+7) = r (+1) + (+16) = r (−10) ∙ (+10) =

s (−9) ∙ (+3) = s (+17) − (+8) = s (−1) ∙ (−4) =

t (+15) ∙ (+20) = t (−8) ∙ (−16) = t (−12) + (+9) =

u (−11) ∙ (−18) = u (−4) − (+14) = u (+17) + (+16) =

v (−17) ∙ (+20) = v (+19) + (+9) = v (+14) ∙ (0) =

w (−14) ∙ (+19) = w (−8) + (+20) = w (+6) + (−11) =

x (+11) ∙ (+19) = x (+10) ∙ (+4) = x (+6) ∙ (−13) =

(+4) ∙ (+3) =

(24)

a a (+6) ∙ (−7) = a (−10) ∙ (+9) =

b (+10) ∙ (+9) = b (+1) − (−8) = b (+9) ∙ (−6) =

c (−10) ∙ (+8) = c (−2) ∙ (−5) = c (+10) ∙ (−6) =

d (−1) ∙ (+5) = d (+5) ∙ (−9) = d (−3) − (−9) =

e (−4) ∙ (−2) = e (−7) + (−1) = e (+1) ∙ (−4) =

f (+4) ∙ (+9) = f (−8) ∙ (−1) = f (−2) ∙ (−10) =

g (−6) ∙ (+5) = g (+3) + (−6) = g (−5) ∙ (−2) =

h (−3) ∙ (0) = h (−7) + (−8) = h (−9) − (−7) =

i (+6) ∙ (+7) = i (−5) + (+5) = i (+5) ∙ (−10) =

j (+5) ∙ (−7) = j (+5) + (−5) = j (+1) − (+10) =

k (−3) ∙ (−9) = k (−4) ∙ (+3) = k (+8) ∙ (0) =

l (−3) ∙ (−3) = l (−5) − (+4) = l (+7) ∙ (+3) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+1) ∙ (−20) = m (+19) − (+9) = m (+5) − (−17) =

n (+11) ∙ (−14) = n (+2) ∙ (−20) = n (+5) + (0) =

o (+1) ∙ (−20) = o (+8) − (−15) = o (+10) ∙ (+9) =

p (−5) ∙ (+17) = p (+2) ∙ (−11) = p (−8) ∙ (+11) =

q (+19) ∙ (−12) = q (+15) − (+5) = q (−13) + (+8) =

r (−4) ∙ (−7) = r (+4) ∙ (+15) = r (+20) − (+14) =

s (−3) ∙ (−17) = s (0) − (+17) = s (−6) ∙ (−19) =

t (−13) ∙ (+19) = t (−15) + (−7) = t (−1) + (−7) =

u (−14) ∙ (+16) = u (−12) + (−9) = u (+9) ∙ (−10) =

v (+16) ∙ (+7) = v (+20) ∙ (+9) = v (+12) ∙ (−5) =

w (−18) ∙ (−2) = w (−12) − (−7) = w (−10) + (+8) =

x (+15) ∙ (−14) = x (+20) + (−3) = x (+11) ∙ (−13) =

(+4) ∙ (+3) =

(25)

a a (−10) ∙ (−7) = a (−6) ∙ (+6) =

b (−8) ∙ (−2) = b (+1) ∙ (+8) = b (+4) ∙ (−10) =

c (−9) ∙ (−1) = c (+5) ∙ (−6) = c (0) − (+5) =

d (+4) ∙ (−2) = d (+4) ∙ (−3) = d (−7) + (−10) =

e (+7) ∙ (+1) = e (+2) ∙ (−10) = e (−2) + (−7) =

f (+5) ∙ (+3) = f (−3) + (+4) = f (+3) ∙ (−8) =

g (−7) ∙ (−7) = g (+2) ∙ (0) = g (+7) ∙ (−4) =

h (−3) ∙ (+9) = h (−7) ∙ (−6) = h (−1) − (−1) =

i (−2) ∙ (−2) = i (+5) − (−2) = i (−8) ∙ (−6) =

j (+9) ∙ (−4) = j (−10) + (−8) = j (−1) + (+3) =

k (−7) ∙ (−6) = k (−10) ∙ (+1) = k (+10) − (−3) =

l (0) ∙ (+8) = l (−8) ∙ (0) = l (+4) ∙ (−2) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (−1) ∙ (−7) = m (−15) ∙ (−3) = m (−14) − (+13) =

n (−5) ∙ (−13) = n (−19) ∙ (+7) = n (+13) + (−8) =

o (+13) ∙ (−16) = o (0) − (+12) = o (−14) ∙ (−13) =

p (+10) ∙ (−5) = p (+19) ∙ (+3) = p (−19) − (−17) =

q (−12) ∙ (+19) = q (+16) − (+7) = q (−14) ∙ (+4) =

r (+2) ∙ (−18) = r (−18) − (−6) = r (−12) ∙ (+8) =

s (+13) ∙ (−11) = s (−7) ∙ (−9) = s (+13) − (+9) =

t (+3) ∙ (−1) = t (−6) − (−20) = t (+16) + (+2) =

u (−9) ∙ (−14) = u (+13) ∙ (−1) = u (−16) ∙ (−19) =

v (+18) ∙ (−3) = v (+5) − (−14) = v (+3) ∙ (+12) =

w (+10) ∙ (−4) = w (−10) + (−16) = w (+12) − (+4) =

x (−11) ∙ (−14) = x (+15) − (+5) = x (−7) ∙ (+13) =

(+4) ∙ (+3) =

(26)

a a (+8) + (−1) = a (−10) − (−7) =

b (+9) ∙ (−9) = b (−5) + (+6) = b (−2) + (−1) =

c (−8) ∙ (+6) = c (+4) ∙ (0) = c (+4) ∙ (−3) =

d (+7) ∙ (+3) = d (0) − (−7) = d (−8) ∙ (−5) =

e (−8) ∙ (+5) = e (+3) ∙ (−9) = e (+9) + (0) =

f (+7) ∙ (−6) = f (+5) − (−10) = f (+5) − (−1) =

g (−7) ∙ (−10) = g (−9) + (+4) = g (−8) ∙ (−7) =

h (−10) ∙ (+10) = h (−6) + (+3) = h (−2) ∙ (−4) =

i (−6) ∙ (+4) = i (+9) + (+10) = i (+10) − (−4) =

j (−9) ∙ (+6) = j (−4) ∙ (−9) = j (−3) ∙ (+8) =

k (+9) ∙ (+9) = k (+5) ∙ (+3) = k (+9) + (−4) =

l (−2) ∙ (+4) = l (−6) ∙ (0) = l (0) − (+5) =

Numeri da −20 a +20 Numeri da −20 a +20 Numeri da −20 a +20

m (+20) ∙ (−9) = m (+1) ∙ (−13) = m (−4) − (+16) =

n (+13) ∙ (−3) = n (+5) ∙ (−9) = n (+1) + (−15) =

o (−2) ∙ (+1) = o (−2) − (+17) = o (+4) + (−8) =

p (−5) ∙ (−8) = p (−13) ∙ (−5) = p (−4) + (−16) =

q (+19) ∙ (+10) = q (+8) ∙ (+16) = q (+15) ∙ (−8) =

r (−11) ∙ (−5) = r (+2) ∙ (+19) = r (−7) ∙ (+20) =

s (−14) ∙ (−3) = s (+3) ∙ (−12) = s (+19) − (−10) =

t (+7) ∙ (+16) = t (+19) ∙ (−11) = t (−3) ∙ (−12) =

u (+17) ∙ (−5) = u (+7) − (−17) = u (+1) ∙ (+11) =

v (−17) ∙ (+3) = v (+17) ∙ (−9) = v (+12) + (+12) =

w (−13) ∙ (−10) = w (+18) ∙ (+1) = w (−1) ∙ (−17) =

x (−20) ∙ (−2) = x (+3) ∙ (+1) = x (+2) − (+18) =

(+4) ∙ (+3) =

Riferimenti