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1oa1 Worksheets

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Operations and Algebraic Thinking Represent and solve problems involving addition and subtraction. 1Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
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1oa1

Word Addition Within 20

1oa1 Worksheets - word-addition-within-20 worksheet 1oa1 Worksheets - word-addition-within-20 worksheet

Word Subtraction Within 20

1oa1 Worksheets - word-subtraction-within-20 worksheet 1oa1 Worksheets - word-subtraction-within-20 worksheet

Add & Subtract within 20

1oa1 Worksheets - add-subtract-within-20 worksheet 1oa1 Worksheets - add-subtract-within-20 worksheet
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