1) Subtract Two-Digit number by 10

2) Determine unknown number in subtraction equation

3) Subtract Two-Digit number by multiple of ten

5) Subtract Two-Digit number by Two-Digit number

6) Subtract Three-Digit number by 100

7) Subtract Three-Digit number by 10

8) Subtract Three-Digit number by multiple of one hundred

9) Subtract Three-Digit number by multiple of ten

10) Subtract Three-Digit number by Two-Digit number

11) Subtract Three-Digit number by Three-Digit number