➕ 3rd Grade Math · Unit 4

Multiplication and Division

19 short narrated lessons in 4 chapters, each with pictures, a quiz with a hint and a second try, and an explanation for every answer.

Standards: 3.OA.A.2 3.OA.B.6 3.OA.A.4 3.OA.B.5 3.OA.C.7 3.NBT.A.3

3rd Grade Math · 7 units
  1. 1Introducing Multiplication
  2. 2Area and Multiplication
  3. 3Adding and Subtracting within 1,000
  4. 4Multiplication and Division
  5. 5Fractions
  6. 6Measurement and Data
  7. 7Shapes and Perimeter
Picture from the lesson “Sharing Equally”
Sharing Equally
Picture from the lesson “Making Equal Groups”
Making Equal Groups
Picture from the lesson “Division Sentences”
Division Sentences

What your child will learn

What is division?

  1. Sharing EquallyUnderstand division as sharing a total equally among groups.
  2. Making Equal GroupsUnderstand division as making groups of a certain size and counting the groups.
  3. Division SentencesWrite division sentences like 12 divided by 3 equals 4 and tell what each number means.
  4. Division StoriesTell and solve story problems using division.
  5. Division Review ReviewReview the two meanings of division and division sentences.

Multiplication and division are related

  1. Fact FamiliesUse fact families to see how multiplication and division are related.
  2. Division as a Missing FactorSolve division by finding the missing factor, like 3 times what equals 15.
  3. Finding the Unknown NumberFind the unknown number in multiplication and division equations.
  4. Related Facts Review ReviewReview fact families and missing factors.

Multiplication strategies

  1. Multiplying by 0 and 1Explain what happens when you multiply by 0 or by 1.
  2. Order Doesn't Change the ProductUse the commutative property to make facts easier.
  3. Breaking Apart FactsBreak a hard fact into two easier facts, like 7 times 6 as 5 times 6 plus 2 times 6.
  4. Multiplying by 3, 4 and 6Use doubling and known facts to multiply by 3, 4 and 6.
  5. Multiplying by 7, 8 and 9Use break-apart strategies and patterns to multiply by 7, 8 and 9.
  6. Multiplication Strategies Review ReviewReview strategies for multiplication facts up to 10 times 10.

Multiplying by multiples of 10

  1. Multiplying by 10, 20 and 30Multiply one-digit numbers by multiples of 10, like 4 times 30.
  2. Using Place Value to MultiplyExplain multiplying by multiples of 10 using place value: 4 times 3 tens is 12 tens.
  3. Multiples of 10 Review ReviewReview multiplying by multiples of 10.
  4. Unit 4 Test: Multiply and DivideShow what you learned in the whole unit (What is division?, Multiplication and division are related, Multiplication strategies, Multiplying by multiples of 10) by answering mixed questions.

Try a question from this unit

From the lesson “Sharing Equally”

8 apples are shared equally by 2 kids. How many apples does each kid get?

  • 6
  • 4
  • 10
  • 16
Show the answer

4. 8 shared into 2 equal groups gives 4 in each group, so each kid gets 4 apples.

Hint kids see after a wrong try: “Give one apple to each kid, again and again, until none are left.”

Key words

  • divide
  • share
  • groups
  • quotient
  • dividend
  • divisor
  • divided by
  • fact family
  • inverse
  • missing factor
  • unknown
  • zero property
  • identity property
  • commutative property
  • distributive property
  • strategy
  • pattern
  • multiple of 10
  • tens
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