Question

a)23 + 47 - 3 . 12 - 9 = c)120 : 30 + 14 - 26 =
b) 76 - 56 + 2 - 4 . 2 = d)25 . 4 - 3 . 30 =

Answer 1

Resposta:

a)25

b)14

c)28

d)10

Explicação passo-a-passo:

a)23+47-3•12-9

23+47-36-9

70-45

=25

b)76-56+2-4•2

76-56+2-8

20-6

=14

c)120:30+14-26

40+14-26

54-26

=28

d)25•4-3•30

100-90

=10