Question

a)(-4) + (-5) =
c))( +7 ) -(-6)=.....
e) 12-(-9 ) +8=......
g) -15 +8+ (-10).
i)28 +15-16 +(-20)=.....
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Answer 1

Resposta:

a) -9

c) 13

e) 29

g) -17

i) 47

Answer 2

Resposta:

a)(-4) + (-5) =

-4-5 =

-9

c))( +7 ) -(-6)=

+7+6 =

+13

e) 12-(-9 ) +8=

12+9+8 =

21+8 =

29

g) -15 +8+ (-10) =

-15+8-10 =

-7-10 =

-17

i)28 +15-16 +(-20)=

28+15-16-20 =

43-16-20 =

27-20 =

7