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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 Worksheets - Word Addition Within 20 worksheet

Load up one problem at a time! Ideal for projectors, tablets and computers.

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Word Addition Within 20

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1oa1 Worksheets - Word Subtraction Within 20 worksheet

Load up one problem at a time! Ideal for projectors, tablets and computers.

Create a set of flash cards.

Create a distance learning assignment.

Distance Learning

Create a new worksheet.

Create New Sheet

Create a new worksheet.

Customize Problems

Magnify worksheet preview

Select a Worksheet >

Word Subtraction Within 20

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1oa1 Worksheets - Add & Subtract within 20 worksheet

Load up one problem at a time! Ideal for projectors, tablets and computers.

Create a set of flash cards.

Create a distance learning assignment.

Distance Learning

Create a new worksheet.

Create New Sheet

Magnify worksheet preview

Select a Worksheet >

Add & Subtract within 20

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