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Missing addends (3-digit addition)

Addition worksheets

Missing addend exercises with all terms under 1,000. Worksheets with equations in either the horizontal or vertical formats are available.

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Horizontal:

Worksheet #1 Worksheet #2 Worksheet #3

Vertical:

Worksheet #4 Worksheet #5 Worksheet #6

3 More

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Three 2-digit numbers Four 2-digit numbers

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