Video

Adding with regrouping (Full video)

Khan Academy
Supporting grades: 4

Description: Sal adds 35 + 27 thinking about place value. The top number I have one, two, three 10's, and I have one, two, three, four, five ones. The second number here I have two 10's, one, two, and I have one, two, three, four, five, six, seven one's. Two tens and seven ones.

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