Question

Calculează:
1. a) –17 + 23 + 15 – 33 + 12
b) 76 – 105 + 24 – 8 – 7
c) –211 + 101 + 110 – 25
d) 136 – 128 – 8 – 12 + 13.

Answer 1

1.a)6-18+12=-12+12=0

b)-29+16-7=-13-7=-20

c)-110+85=-25

d)8-20+13=-12+13=1