Missing addend · level 4 Worksheets

Find the unknown part — bridges to algebra readiness.

Use these free 1st grade missing addends (sums to 20) worksheets for 10–15 minute practice sessions at home or in class. Pick one of 20 preset PDF variations or open the custom generator for a unique seed. Created by the Kibi Club curriculum team.

Free 1st grade printable PDF · More 1st Grade math worksheets

20 Ready-to-Print Variations

Select a version below. Each generates a unique 4-page PDF.

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Open the worksheet browser for 1st grade — filtered by skill type.