Question

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

b) *

18+(-6) + (+1) - (+3) - (-1)+(-9) =

c) *

(-11) – (-4) + (+5) - (+10) + (+1) =
d)
100+(12)-(25)+(-1)-(-7)-(5)-(-6)=
e)
15.(-8+ 7)+ (9-4)=​

Answer 1

Resposta:

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

+3-1-10-4

+2-10-4

-12

b) 18+(-6) + (+1) - (+3) - (-1)+(-9) =

18-6+1-3+1-9

12+1+3+1-9

13+3+1-9

16+1-9

17-9

8

c) (-11) – (-4) + (+5) - (+10) + (+1) =

-11+4+5-10+10

-7+5-10+10

-2-10+10

-12+10

-2

d) 100+(12)-(25)+(-1)-(-7)-(5)-(-6)=

100+12-25-1+7-5+16

112-25-1+7-5+6

87-1+7-5+6

86+7-5+6

93-5+6

88+6

94

e) 15.(-8+ 7)+ (9-4)=​

15.(-1)+5

-15+5

-10