Add Tens and Ones

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Add ones to ones and tens to tens. Ten ones can be regrouped as one ten.

Worked example

27 + 16: seven ones plus six ones is thirteen ones. Regroup ten of those ones. Two tens plus one ten plus the regrouped ten is four tens, so the sum is 43.

1. 24 + 13 = ? Answer

2. 36 + 27 = ? Answer

3. 48 + 15 = ? Answer

4. 52 + 29 = ? Answer

5. 67 + 18 = ? Answer