Sixteen number families test young mathematicians' knowledge of the commutative and associative property of addition. Pupils list four problems—two addition and two subtraction—related to a given set of three numbers.

Concepts

numbers, addition, subtraction, associative property of addition, commutative property of addition

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Additional Tags

math

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Instructional Ideas

• Print and laminate cards for continued use
• Have cards and worksheets readily available for early finishers to work on when their a task is complete
• Cut cards and worksheet into single-use practice; have pupils randomly draw a number family card, complete the worksheet square, and then share their solutions with their peers 

Classroom Considerations

• The cards look best printed in color 
• Worksheet is the third of seven in a series created by The Curriculum Corner

Pros

• The cards are bright and engaging
• The overall design of the sheet is clear and easy-to-follow 

Cons

• None

Common Core

1.OA.B.3 1.OA.B.4