double digit multiplication
what is 30x30
900
2x2
4
3x3
9
10x3
30
15x9
135
what is 12x12
144
2x3
6
3x7
21
10x9
90
15x5
60
what is 11x12
132
2x19
38
3x8
24
10x10
100
15x5
75
what is 20x40
800
2x50
100
3x20
60
10x50
500
15x6
90
what is 50x85
4250
300x2
600
3x345
1035
10x60
600
15x12
180