Add & sub within 20 w/o crossing 10

1Add and subtract within 20 without crossing the 10.png
1Add and subtract within 20 without crossing the 10.png

Add & sub within 20 w/o crossing 10

0.99

1.OA.6, 2.OA.2

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About This Sprint

Connect single-digit addition to adding with teen numbers, e.g.

5 + 2 =

15 + 2 =

8 - 3 =

18 - 3 =