Question

calcule e resolva as expressões

a)14(10-1)-(-3)+4=
b)-(3-5)-(-4+8)-(1-7)=
c)-30+(-5-1)-(-1-7)=
d)(40)×(-2)-(-18)=
e)-15+10:(2-7)=
f ) 40:(-1)+(-8)-12=
​

Answer 1

a) 14(10-1)-(-3)+4=

14 . 9 + 3 + 4

126 + 7

133

b) -(3-5)-(-4+8)-(1-7)=

-(-8) - (+4) - (-6)

8 - 4 + 6

10

c) -30+(-5-1)-(-1-7)=

-30 + (-6) - (-8)

-30 - 6 + 8

-36 + 8

-28

d) (40)×(-2)-(-18)=

40 . (-2) + 18

-80 + 18

-62

e) -15+10:(2-7)=

-15 + 10 : (-5)

-15 - 2

-17

f ) 40:(-1)+(-8)-12=

-40 - 8 - 12

-60