Division Facts Worksheets for 3rd Grade: Find the Missing Number
Download PDF worksheetAnswer key (PDF)Worksheet + answer key (2 pages)
Prints on one US Letter page; the answer key is a separate page. Print at 100% / "Actual size" on US Letter paper. Free for personal and classroom use. Version 1 of 10. Choose another version.
Skill: Finding a missing dividend or divisor in division facts within 100
Teaching tips and what to try next
Best for third graders who know most multiplication facts and can solve plain division facts like those in Division Facts 1-10. Fact triangle cards, with the product at the top and the two factors below, show at once which number a blank stands for. For extra practice, try Missing Factors: Find the Unknown Number or the full sets in Multiplication and Division Fact Families.
10 versions, each with its own answer key
Same skill and layout, a fresh set of problems in every version, so children can keep practicing without repeating a page. Problems are not repeated between versions unless a skill has only a small number of possible problems (for example, the addition facts within 10).
- Version 1: Sheet · Key · Both
- Version 2: Sheet · Key · Both
- Version 3: Sheet · Key · Both
- Version 4: Sheet · Key · Both
- Version 5: Sheet · Key · Both
- Version 6: Sheet · Key · Both
- Version 7: Sheet · Key · Both
- Version 8: Sheet · Key · Both
- Version 9: Sheet · Key · Both
- Version 10: Sheet · Key · Both
Download all 10 versions (one PDF)All 10 answer keys (PDF)
Make a new one
Want more practice? Make a brand-new Division Facts: Find the Missing Number sheet with fresh problems and its matching answer key, created right in your browser.
Related worksheets
About this worksheet
Most division practice asks for the answer at the end of the equation. Real understanding shows when a child can also find a missing number at the start or in the middle. This third-grade worksheet gives twenty division equations where the quotient is already filled in, and children find either the number being divided or the number it is divided by.
Every equation comes from the facts within 100, with divisors from 2 to 10 and quotients from 1 to 10. Some equations look like ___ ÷ 6 = 4, where children find the dividend, and some look like 35 ÷ ___ = 7, where they find the divisor. The two kinds are mixed together on the page, so children need to read each one carefully. Both kinds are solved most easily with a multiplication fact. Each of the ten versions has new equations and its own answer key.
How to use it: before starting, write one fact family together, such as 4 × 6 = 24, 6 × 4 = 24, 24 ÷ 4 = 6 and 24 ÷ 6 = 4. Then cover one number and ask which one is missing. For a missing dividend, multiply the two numbers you can see. For a missing divisor, ask, "What number times 7 makes 35?" A good check is to put the answer into the blank and read the whole equation aloud.
The answer key shows every missing number. To practice the same idea with multiplication, try our Missing Factors: Find the Unknown Number worksheet. For more practice, try our Division Facts 1-10 worksheet.