Subtracting Integers  Two Digits  Enter Category 

100What is 111
888999

100What is 336
28x12


200What is 37
9721,009

200What is 144
12x12


300What is 354
594948

300What is 323
17x19


400What is 5,019
9215,940

400What is 3640
65x56


500What is 1
9991,000

500What is 870
87x10

500What is 5050
1+2+3+4+5 all the way to a hundred
