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1st Grade CCSS Math
1.OA.B.4
Worksheets on Common Core Standard - 1.OA.B.4
1.OA.B.4 - Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8.
(4 results)
I Can Add and Subtract
1.OA.B.4
Adding in the Clouds
This single digit addition fluency worksheet provi...
1.OA.B.4
Fact Family
This fact families worksheet within twenty will he...
1.OA.B.4
Fact Family Triangles
This fact families worksheet within twenty will he...
1.OA.B.4
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