Math Practice Topic: Basic Subtraction to 100

Description: Two-digit subtraction with no borrowing.

Adaptive Learning Progression: Starts with just subtracting the 10's column, then does subtraction with both the 10's and 1's columns.

Sample Levels (out of 6)

Subtract.

1.
50
- 20

Subtract.

1.
49
- 27
2.
79
- 59
3.
97
- 66
4.
47
- 34

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