Question

Cite -7+6=
-8-7=
10-2
7-13
-1-0
16-20
-18-9
5-45=

Answer 1

$- 7 + 6 = - 1 \\ - 8 - 7 = - 15 \\ 10 - 2 = 8 \\ 7 - 13 = - 6 \\ - 1 - 0 = - 1 \\ 16 - 20 = - 4 \\ - 18 - 9 = - 27 \\ 5 - 45 = - 40$

Answer 2

-7+6= -1
-8-7= +15

10-2= 8

7-13= -6

-1-0= +1

16-20= -4

-18-9= -27

5-45= -40