Question

Calcule os valores das expressões:
a) 3 . ( 4 + 5 . 2 ) - ( 12 – 44 ) = b) ( 5 – 56 + 10 – 94 ) = c) -10 + 8 , 9 – 5 . 3 + 42 : 7 – 15 =

Answer 1

a) 3 . ( 4 + 5 . 2 ) - ( 12 – 44 )

3 . (4 + 10) - (-32) =

3 . 14 + 32 =

42 + 32 = 74

b) ( 5 – 56 + 10 – 94 )

15 - 150 = - 135

c) -10 + 8 . 9 – 5 . 3 + 42 : 7 – 15 =

- 10 + 72 - 15 + 6 - 15 =

- 40 + 78 = 38

Bons estudos! :-)