Question

02- Determine os produtos: a) (+5) . (+7) = _________________ b) (– 7) . (–2) = _________________ c) 3 . (–6) = _________________ d) (–5) . (–9) = _________________ e) (+10) . (+3) = _________________ f) (–11) . (–2) = _________________ g) (–15) . (+3) = _________________ h) (–2) . (+26) = _________________ i) (–50) . (+60) = _________________ j) (+13) . (–5) = _________________

Answer 1

• Sinais iguais = resultado positivo  
• Sinais diferentes = resultado negativo

___Calculando___

a) (+5) . (+7) = 35

b) (– 7) . (–2) = 14

c) 3 . (–6) = -18

d) (–5) . (–9) = 45

e) (+10) . (+3) = 30

f) (–11) . (–2) = 22

g) (–15) . (+3) = -45

h) (–2) . (+26) = -52

i) (–50) . (+60) = -3000

j) (+13) . (–5) = -65

Bons estudos ;)

Anjinha.