Question

5.
No cadero, efetue as multiplicações
al (+2) - (+7) - (+10)
b) (-4) -0. (+3)-(-)
c)(+5)-(-3) - (+2) - (+1) • (-2)
d) (-1)-(+2).(-2) - (+5) • (-3)
e) (-2).(-5).(-1).(-3)
f) (-10)-(-2).(-2) - (-10).(-2)​

Answer 1

a) (+2)-7-10
2-17
-15
b) -4
c) +5+3-2-(-2)
8-2+2
8