

Addition and subtraction within 20
Presentation
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Mathematics, Professional Development, Fun
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1st - 2nd Grade
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Practice Problem
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Easy
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CCSS
2.OA.A.1, 1.OA.A.1, 2.OA.C.3
Standards-aligned
WOL Sub
Used 82+ times
FREE Resource
4 Slides • 11 Questions
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Fill in the Blanks
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Multiple Choice
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Multiple Choice
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