Printable Missing Addend Worksheets

Find the missing addend in eight addition equations. Includes a printable activity and answer or teaching guide.

How to use this printable

Find the missing part. The two parts add to the whole. Work on a few items at a time. Ask the learner to explain one answer.

Model the first equation with counters if needed. Ask the learner to explain what the numbers represent, then compare the model with the written equation. A few carefully explained items can be more useful than rushing through the whole page.

Answers and checking guidance

These answers follow the numbered items on the printable. Use the pictured quantities or diagrams on the activity page where an item refers to a visual.

1. 1 + ___ = 4 — 3
2. 3 + ___ = 5 — 2
3. 5 + ___ = 9 — 4
4. 7 + ___ = 10 — 3
5. 2 + ___ = 6 — 4
6. 4 + ___ = 7 — 3
7. 6 + ___ = 8 — 2
8. 8 + ___ = 12 — 4

Printing the activity and guide

The full download contains one learner activity page and one answer or teaching-guide page. Print page 1 for the learner and keep page 2 for checking. Use portrait orientation on US Letter paper; select Fit for A4 and check the preview before printing. The gallery download offers the activity page by itself. For both pages, use the full PDF link near the top of this article.