Video

Worked example: Subtracting 3-digit numbers (regrouping twice) (Full video)

Khan Academy

Supporting grades: 3

Description: Sal using regrouping (borrowing) to subtract 913 - 286. Created by Sal Khan. This 1 in the tens place represents 10. So let's try to subtract going place by place. So if we start in the ones place, we have a problem immediately.

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