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Math Gym
Subtraction Guide

Subtraction Level 21: 4d - 3d (no borrow). visible-place subtraction.

1. Release thousands

1. Release thousandsRead one place; drop one digit.
answer strip
6 - 0 = 6; drop 6.

2. Release hundreds

2. Release hundreds
answer strip
8 - 5 = 3; drop 3.

3. Release tens

3. Release tens
answer strip
4 - 3 = 1; drop 1.

4. Release ones

4. Release ones
answer strip
2 - 1 = 1; drop 1.

5. Read answer

5. Read answerDrop finished digits; read the answer.
Read 6 | 3 | 1 | 1 as 6311.