Adding in ten groups

Teaching Transcript

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Let's use ten groups to add the 9 at the bottom to the 18 that are already in the ten group

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We can complete a ten group if we take two of the bottom ones and move them up.

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Now we have 2 completed ten groups which would be twenty.

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We're left with 7 at the bottom. Let's add them to empty ten group

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So we have 7 in our last ten group

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Ten, ten, and 7 gives us a total of 27. So 18 plus 9 is 27

This math skill teaches adding numbers using ten groups and carrying over. It involves rearranging units into groups of ten to simplify addition and clarify the process of carrying when sums exceed ten.

Skill Practice

Adding in ten groups, including a carry

Test your understanding of adding in ten groups by practicing it! Work through the below exercises to use it in practice.

Ten Groups - Add, Without Carry, Less than 10

Ten Groups - Add, Without Carry, Less than 20

Ten Groups - Add, Without Carry, Less than 30

Ten Groups - Add, With Carry, Less than 20

Ten Groups - Add, With Carry, Less than 30