Borrowing

Objective

Know how to subtract any two numbers

Example

5 15 7 17

6 5 8 7

+4 8 3 8

1 7 4 9

Answer: 1749

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Explanation

When you subtract an bigger digit from a smaller digit, you must use borrowing.

(Borrowing is also known as "regrouping")

For an explanation of how borrowing works,

• Click Here, or

• Try a Google search for "carrying with addition" or "regrouping with addition". You're bound to find a link that makes sense to you

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Examples

Example 1

12

4 2 16

6 5 3 6

+3 2 9 8

3 2 3 8

Answer: 3238

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Example 2

9 9

5 15 10 18

6 0 0 8

+4 8 3 9

1 1 6 9

Answer: 1169

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Practice your skills