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Grade 2Addition & Subtraction

2.OA.B.2

Know all the one-digit addition facts from memory.

Worksheets for this standard 5 topics

Practice & models 2
Add and Subtract Within 203 ways
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Make a Ten to Add and Subtract6 ways
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Games & labs 3
Secret Code Riddle (Add & Subtract) II1 way
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Math Maze (Add & Subtract) I1 way
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Calcudoku (3×3)1 way
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The standard, officially

Fluently add and subtract within 20 using mental strategies.* By end of Grade 2, know from memory all sums of two one-digit numbers. *See standard 1.OA.6 for a list of mental strategies.

Builds on
1.OA.C.6Add and subtract within 20
Leads to
2.NBT.B.5Add and subtract within 100