✏️ Unknown Factors: Practice A (3.OA.A.4)

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Determine the unknown number in a multiplication or division equation. Solve each problem.

1. 5 × ___ = 30

2. ___ ÷ 8 = 7

3. 21 ÷ ___ = 3

4. 7 × ___ = 70

5. ___ ÷ 5 = 7

6. 50 ÷ ___ = 10

7. 9 × ___ = 36

8. ___ ÷ 5 = 5

9. 27 ÷ ___ = 3

10. 8 × ___ = 72

11. ___ ÷ 2 = 10

12. 49 ÷ ___ = 7

Answer key: 1) 6 · 2) 56 · 3) 7 · 4) 10 · 5) 35 · 6) 5 · 7) 4 · 8) 25 · 9) 9 · 10) 9 · 11) 20 · 12) 7

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Worksheets › Grade 3 Math › Unknown Factors › Unknown Factors

Grade 3 (ages 8–9)Numbers & mathsFree printable PDF

About this grade 3 worksheet

Free Grade 3 math worksheet (Common Core 3.OA.A.4): unknown factors — twelve practice problems, with answer key. Skill: Determine the unknown number in a multiplication or division equation. Level: Grade 3 — also suits Year 4 (UK).

For teachers: skills & standards

CCSS 3.OA.A.4: Find the unknown number in multiplication or division equations
Works as a morning-work page, a centre/station activity, homework or an early-finisher task.

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What age is it for?

It is designed for Grade 3 (ages 8–9), but use it with any child who is ready.

What skills does it build?

Determine the unknown number in a multiplication or division equation.

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More “Unknown Factors” printables (3.oa.a.4: determine the unknown number in a multiplication or division equation)

Unknown Factors: Practice B (3.OA.A.4) · Unknown Factors: Mixed Practice & Reasoning (3.OA.A.4) · Unknown Factors: Show Your Thinking (3.OA.A.4) · Unknown Factors: Quick Check (3.OA.A.4)

All 5 unknown factors sheets → · Grade 3 Math: all 10 skills → · All Common Core grades

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