KMaze.com

Missing Factor on the Left

Use multiplication facts to solve unknown-factor equations with the factor on the left.

Aligned to CCSS.Math.Content.3.OA.A.4. This page loads a playable maze, star scoring, a print-friendly worksheet, and an answer key.

Level quick facts

  • Grade: 3
  • Skill: Solve equations where the missing number is the factor on the left.
  • Standard: 3.OA.A.4
  • Game mode: Gate maze for unknown-number equations
  • Estimated time: 4-7 minutes
  • Success signal: Reach the finish with most gates correct; 3 stars means the student is ready for the next level.
  • Next step: Continue to Unknown Quotient.

Common mistake to watch: Students may treat the question mark as always asking for the product.

What this level covers

Solve equations where the missing number is the factor on the left. It supports 3.OA.A.4 by turning the standard into a playable maze path and matching printable practice.

Students determine the unknown number in multiplication or division equations.

Gate questions

  1. ? × 3 = 18
  2. ? × 4 = 28
  3. ? × 4 = 40
  4. ? × 4 = 40
  5. ? × 3 = 9

Extra practice

  1. ? × 4 = 16
  2. ? × 3 = 30
  3. ? × 4 = 32
  4. ? × 3 = 15
  5. ? × 3 = 15
  6. ? × 4 = 20
  7. ? × 4 = 40
  8. ? × 4 = 24

Printable worksheet / 3.OA.A.4

Level 2: Missing Factor on the Left

Determine the unknown whole number in multiplication and division equations relating three whole numbers.

kmaze.com
S F 1 2 3 4 5

Gate Questions

  1. ? × 3 = 18
  2. ? × 4 = 28
  3. ? × 4 = 40
  4. ? × 4 = 40
  5. ? × 3 = 9

Extra Practice

  1. ? × 4 = 16
  2. ? × 3 = 30
  3. ? × 4 = 32
  4. ? × 3 = 15
  5. ? × 3 = 15
  6. ? × 4 = 20
  7. ? × 4 = 40
  8. ? × 4 = 24

Standard

CCSS.Math.Content.3.OA.A.4

Student worksheet page

Teacher copy / 3.OA.A.4

Level 2: Answer Key

Determine the unknown whole number in multiplication and division equations relating three whole numbers.

kmaze.com

Answer Key

  1. Gate 1: 6
  2. Gate 2: 7
  3. Gate 3: 10
  4. Gate 4: 10
  5. Gate 5: 3

Extra Practice Answers

  1. Practice 1: 4
  2. Practice 2: 10
  3. Practice 3: 8
  4. Practice 4: 5
  5. Practice 5: 5
  6. Practice 6: 5
  7. Practice 7: 10
  8. Practice 8: 6

Standard

CCSS.Math.Content.3.OA.A.4

Teacher answer key page

Continue this learning path

All 3.OA.A.4 levels

  1. Missing Factor on the Right
  2. Missing Factor on the Left
  3. Unknown Quotient
  4. Unknown Divisor
  5. Mixed Unknown Number Equations
  6. Unknown Equation Review
  7. Mixed Equation Forms
  8. Boss Level: Unknown Number Equation Review

Print worksheet

Back to the episode map