Adding Decades

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The twenty problems on this worksheet are great for first graders. They have the opportunity to work with two two-digit numbers by adding groups of whole tens. None of these addends are larger than 90, so the totals stay manageable and friendly for your young ones.

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The twenty problems on this worksheet are great for first graders. They have the opportunity to work with two two-digit numbers by adding groups of whole tens. None of these addends are larger than 90, so the totals stay manageable and friendly for your young ones.