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Addition & Subtraction Variable Worksheets

These addition and subtraction variable worksheets help kindergarten through 3rd grade students develop early algebraic thinking by solving for unknown numbers in equations. Students practice finding missing variables across four difficulty levels, from problems within 10 up to calculations within 1,000, with each worksheet containing 20 targeted problems.

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Kindergarten 1st Grade 2nd Grade 3rd Grade

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numeric place values addition subtraction horizontal

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Addition & Subtraction

About these worksheets

Students solve for unknown variables in addition and subtraction equations at four levels of difficulty: within 10, within 20, within 100, and within 1,000. These worksheets build early algebraic thinking by having students find the missing number that makes each equation true. Aligned with kindergarten through third grade standards.

- add-subtract-within-10 worksheet

- add-subtract-within-10 worksheet

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Add & Subtract within 10

Each worksheet has 20 problems finding the value of a variable.

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

Create a set of flash cards.

Create a distance learning assignment.

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- add-subtract-within-20 worksheet

- add-subtract-within-20 worksheet

Add to favorites

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Add & Subtract within 20

Each worksheet has 20 problems finding the value of a variable.

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

Select a Worksheet >

Create New Sheet

- add-subtract-within-100 worksheet

- add-subtract-within-100 worksheet

Add to favorites

Remove from favorites

Add & Subtract within 100

Each worksheet has 20 problems finding the value of a variable.

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

Select a Worksheet >

Create New Sheet

- add-subtract-within-1-000 worksheet

- add-subtract-within-1-000 worksheet

Add to favorites

Remove from favorites

Add & Subtract within 1,000

Each worksheet has 20 problems finding the value of a variable.

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

Select a Worksheet >

Create New Sheet

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