Video

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

Description: Learn to use regrouping (borrowing) and place value to subtract 971 - 659. Created by Sal Khan. Let's try to subtract 659 from 971. You go to the ones place, and you say, how am I going to subtract a 9 from a 1? So this 9 is in the hundreds place, so it represents 900.

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