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CCSS 2.OA.1 Worksheets

CCSS 2.OA.1 (Common Core, 2nd Grade): "Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.

Operations and Algebraic Thinking Represent and solve problems involving addition and subtraction. 1Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

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CCSS 2.OA.1 Worksheets - Word Addition Within 100 worksheet

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

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Word Addition Within 100

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Read a short story problem and figure out what numbers need to be added.
Add two numbers up to 100 to find the total.
Use clue words like "in all" and "altogether" to know it’s an addition problem.

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CCSS 2.OA.1 Worksheets - Add & Subtract worksheet

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

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Create a distance learning assignment.

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Add & Subtract

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Solve two-step word problems where you add first and then subtract to find the answer.
Figure out what each step in a story problem is asking before you start calculating.
Write a simple equation to match a word problem and use it to solve.

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CCSS 2.OA.1 Worksheets - Subtract & Add 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.

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Subtract & Add

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Solve two-step word problems where you subtract first and then add to find the final answer.
Figure out what each number in a story problem means and decide what to do first and next.

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CCSS 2.OA.1 Worksheets - Subtracting within 100 (horizontal) 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

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Subtracting within 100 (horizontal)

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Subtract two-digit numbers to find how much is left or how much less.
Use tens and ones place value to subtract more accurately.
Decide when you need to borrow (regroup) to subtract from a smaller ones digit.
Read and solve subtraction equations written in a single line.

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CCSS 2.OA.1 Worksheets - Word Subtraction Within 100 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

Customize Problems.

Customize Problems

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Word Subtraction Within 100

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Read a short story problem and figure out what is being taken away.
Use subtraction words like minus, difference, left, and remaining to understand what the question is asking.

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CCSS 2.OA.1 Worksheets - Addition With Tape Diagram 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

Customize Problems.

Customize Problems

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Addition With Tape Diagram

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Use a tape diagram to show the parts and the whole in an addition story problem.
Add two or more amounts to find the total.
Write an addition equation that matches what the tape diagram shows.

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CCSS 2.OA.1 Worksheets - Subtraction With Tape Diagram 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

Customize Problems.

Customize Problems

Magnify worksheet preview

Select a Worksheet >

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Subtraction With Tape Diagram

2oa1

Use a tape diagram to show the whole and the part being taken away.
Subtract to find how many are left or remaining in a story problem.

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