Question

Calcule o valor das expressões: a) 20:10+10 = b)7x3-2x5 = c)40-2x4+5 = d)4x3+10:2 = e)50-16:8+7 =

Answer 1

Resposta:

a) 12

b) 11

c) 27

d) 17

e) 49

Answer 2

Resposta:

a) 20/10 + 10 =

20/10 = 2 + 10 = 12

b) 7x3 - 2x5 =

21 - 10 = 11

c) 40 - 2x4 + 5 =

40 - 8 + 5 =

32 + 5 = 37

d) 4x3 + 10/2 =

12 + 5 = 17

e) 50 - 16/8 + 7 =

50 - 2 + 7 =

50 - 9 = 41