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Review adding 3-digit numbers using column addition without regrouping

Lesson 5 / 15

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I can add 3-digit numbers using column addition.

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The addends are written in columns with the same value digits in the same column. The sum is recorded underneath the addends with the same value digits in the same column. Use zero to show that there are no tens or ones in a 3-digit number. When using column addition, always start by adding the numbers with the smallest place value first.

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