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Multiply 3-digit decimals (missing factors)

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Free printable multiply 3-digit decimals (missing factors) worksheets for 5th grade. Students find unknown decimal factors in multiplication equations involving thousandths-precision numbers. Combines multi-digit decimal fluency with algebraic reasoning. Part of our decimals multiplication worksheets collection.

What You'll Learn

  • Identify missing factors in three-digit decimal multiplication equations
  • Use division as the inverse to solve for unknown decimal factors
  • Check solutions by confirming the product matches the equation

FAQ

What operation do students use to find a missing decimal factor?

They divide the known product by the known factor, paying careful attention to decimal placement throughout the division process.

Why are 3-digit decimals used in missing factor problems?

They require greater precision and attention than 1- or 2-digit decimals, challenging students to manage decimal placement while also solving for an unknown.

How do these problems build readiness for algebraic equations?

Finding a missing factor — whether expressed as ? × 4.2 = 12.6 or using a variable — is direct equation-solving practice that transitions naturally to algebra.

Grade
5th Grade
Ages
Ages 10-11
Subject
Math
Format
Printable PDF

Ratings & Reviews

3

Tom B.

Learning Specialist · Verified download

May 2026

This will be a great addition. I already recommend ClassWeekly to all the families I work with.

Helpful · 10

Sarah K.

Kindergarten Teacher · Verified download

May 2026

So excited for this to be ready! My students really need more practice with this topic.

Helpful · 11

Emily W.

Homeschool parent · Verified download

May 2026

Excited for this one! I've been hunting for a good printable on this topic for weeks.

Helpful · 9

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