Question

efetue as expressões
a) 20-5×(-4)
b)-25-4×(-5)
c)3×(-4)-4×(-7)
d)105-3×5×2+7×(-8)
e)3×(-7-2)+12
f)(-5)×(4-9)
g)(-4×(10-2×6+4)
h(-8×(4-5)+3×(8-10)
i)7×(12-4)-1×(​

Answer 1

Resposta:

a) 40

b)5

c)16

d)105-30-56=19

e)-27+12=-15

f)(-5)x(-5)=25

g)(-4x(2))=-8

h)(-8x(-1)+3x(-2))=3

i)incompleta