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Aquarium Division: Find the Missing Factor worksheet preview

Worksheet

Aquarium Division: Find the Missing Factor

Grade 3 aquarium-themed practice solving division by finding the unknown factor in a related multiplication fact.

Grade 3MathInteractive · Printable

Aligned to3.OA.B.6

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 12 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 3
Subject
Math
Question types
Fill in the blank, Multiple choice, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

  • Students solve division problems by finding the unknown factor in a related multiplication equation.
  • Students choose and match the multiplication facts that solve a given division.
  • Students explain how a multiplication fact shows whether a division answer is right.

How to use

Use after students know their multiplication facts. Have them read each division as a missing-factor question, such as "4 times what number is 28?"

Curriculum

Common Core standard covered

3.OA.B.6

Understand division as finding an unknown factor.

Preview

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Aquarium Division: Find the Missing Factor

Solve each division by finding the unknown factor.

Think multiplication

Find the missing factor. Then use it to solve the division.

1.

4 ×   = 28, so 28 ÷ 4 =  

2.

6 ×   = 54, so 54 ÷ 6 =  

3.

7 ×   = 56, so 56 ÷ 7 =  

4.
A diver puts 35 shells into 5 tanks. Each tank gets the same number of shells. How many shells go in each tank?

5 ×   = 35, so each tank gets   shells.

5.
Ms. Patel's class has 27 students. They visit the shark tank in groups of 3. How many groups are there?

  × 3 = 27, so there are   groups.

Pick the fact

Choose, sort, and match the multiplication facts that solve each division.

6.
Which multiplication fact helps you solve 48 ÷ 6?
  • A. 4 × 8 = 32
  • B. 48 − 6 = 42
  • C. 6 × 8 = 48
  • D. 8 × 8 = 64
7.
Kai helps sort 42 shells for the aquarium touch tank. He puts 6 shells in each bag. Which equation can Kai use to find the number of bags?
  • A. 42 + 6 = ?
  • B. ? × 6 = 42
  • C. 42 × 6 = ?
  • D. 6 + ? = 42
8.
Sort each division by the multiplication fact that solves it.
45 ÷ 924 ÷ 845 ÷ 524 ÷ 3
Use 3 × 8 = 24Use 5 × 9 = 45
9.
Match each division to the multiplication equation that has the same missing number.
  1. 36 ÷ 4 = ?
  2. 30 ÷ 5 = ?
  3. 36 ÷ 9 = ?
  4. 30 ÷ 6 = ?
  1. A. 6 × ? = 30
  2. B. 9 × ? = 36
  3. C. 4 × ? = 36
  4. D. 5 × ? = 30

Aquarium challenge

Use multiplication to solve and explain.

10.
Circle the two multiplication facts that help you solve 63 ÷ 7.

6 × 3 = 189 × 7 = 637 + 9 = 167 × 9 = 63

11.
The aquarium keeper has 64 fish to feed 8 penguins. Each penguin gets the same number of fish. How many fish does each penguin get?

8 ×   = 64, so each penguin gets   fish.

12.
Jamal says 32 ÷ 4 = 9. Is he right? Use a multiplication fact to explain.

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