Making a New Ten

27 + 5 = 30 + 2.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 37

27 plus 5. The ones are 7 and 5. That's 12 ones, more than 9! Time to make a new ten.
Your turn! There are 2 tens and 12 ones. Tap 10 ones to snap them into a new ten.
Now it's 3 tens and 2 ones: 32! So 27 plus 5 is 32.
Or hop to the next ten first: 27 plus 3 is 30. Then 2 more is 32.
When the ones make 10 or more, make a new ten.

Georgia's K-12 Mathematics Standards:

1.NR.5.1 — Use a variety of strategies to solve applicable, mathematical addition and subtraction problems with one- and two-digit whole numbers.