addition
10+10
What is 20
10-5
What is 5
What is 11
1x10
What is 10
9+6
What is 15
12+12
What is 24
6-3
What is 3
35-12
What is 23
2x9
What is 18
18+20
What is 38
8-8
What is 0
45-25
What is 20
3x8
What is 24
6+7
What is 13
What is 96
7-4
What is 3
67-45
What is 22
4x4
What is 16
5+9
what is 14
99+99
198
9-3
what is 6
99-67
what is 32
5x8
what is 40