CCSS 2.OA.4 Worksheets

CCSS 2.OA.4 (Common Core, 2nd Grade): "Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends." 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.

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Operations and Algebraic Thinking Work with equal groups of objects to gain foundations for multiplication. 4Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.

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Creating Equations from Arrays

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• Read an array and tell how many rows and columns it has.
• Write an addition equation that matches an array by using repeated addition.
• Explain how an array shows equal groups of the same number.

One Atta Time

Flash Cards

Distance Learning

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Version 1

Version 2

Version 3

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Version 5

Version 6

Version 7

Version 8

Version 9

Version 10

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Rectangular Arrays

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• Read a rectangular array by counting how many rows and how many columns it has.
• Write a multiplication equation that matches an array (rows × columns = total).
• Use repeated addition to explain what the array shows and connect it to multiplication.
• Switch the factors (like 3 × 4 and 4 × 3) and see that the total stays the same.