2, 3, & 4 as subtrahends
5 as a subtrahend (2)
7 as a subtrahend
8 as a subtrahend (2)
Subtract crossing 10 within 20
2, 3, & 4 as subtrahends (2)
6 as a subtrahend
7 as a subtrahend (2)
9 as a subtrahend
Equivalent number sentences (2)
5 as a subtrahend
6 as a subtrahend (2)
8 as a subtrahend
9 as a subtrahend (2)
Add & subtract crossing 10 within 20
1.OA.6, 2.OA.2
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