Question

Alguém sabe as respostas

Answer 1

a) 5×3 = +15

b) 4×(-5) = -20

c) -8×4 = -32

d) -6×(-7) = +42

e) -2×4×3 = -24

f) 15÷(-4+1) = 15÷(-3) = -5

g) 20÷(-3-2) = 20÷(-5) = -4

h) -35÷7 = -5

i) -40÷(-5) = +8

j) 51÷(-2-1) = 51÷(-3) = -17