Addition
2+2
what is 4?
10-10
what is 0?
4/4
what is 1?
2x1
what is 2?
4+3
what is 7?
42-2
what is 40?
10/5
what is 2?
3x3
what is 9?
8+10
what is 18?
50-25
what is 25?
50/10
what is 5?
4x10
what is 40?
10+20
what is 30?
12-6
what is 6?
77/11
what is 7?
14x2
what is 28?
11+6+3
what is 20?
150-25-5
what is 120?
120/12
10
25x3