Adding
12+17
29
22-15
7
3x8
24
30/6
5
-20+10
-10
-20-5
-25
(-4)x4
-16
-20/4
-5
Say the + and - chant as a group
-2
-3-(-5)
2
3x(-9)
-27
18/(-3)
-6
15+(-15)
0
7-(-3)
10
(-4)(-6)
24
-64/8
-8
(-8)+(-15)
-23
35-77
-42
(-7)(6)
-42
-121/(-11)
11