Question

write the answer of integers using line
1 28-[-15]=
2-19-12=
3-24+20=
4 30+[-17]=
5 -5+7=
6 8+[-5]=
7 8-5=
8 11+[-8]=
9 -19+[-10]=

Answer 1

Answer:

(-)(-)become(+) and(-)(+)become (-)so 28+15=43,

-19-12= -31

-24+20= -4

30-17= 13

-5+7= 2

8-5= 3

8-5= 3

11-8= 3

9-19-10=9-29= -20