Question

Efetue as subtrações
A)(+3)-(+5)
B)(+10)-(-9)
C)(-5)-(+8)
D)(+10)-(-20)
E)(+18)-(+15)
F)(-1)-(-2)

Answer 1

a) -2

b) 19

c) -13

d) 30

e) 3

f) 1