Adding Three Digit Numbers With Regrouping | Addition And Subtraction | Arithmetic | Khan Academy


In the old days ‘regrouping’ was known as “carrying.” It’s the same idea now as then: moving the tens (or hundreds or thousands) over to the next column.

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8 thoughts

  1. It’s easier to add if you do it from right to left and carry at the bottom. However, you can do these in your head.

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