Subscribe

4th grade · Math · Unit 3 of 15

Multiply & Divide

Bigger numbers by one digit

What your child practices

Multiplying and dividing 2- and 3-digit numbers by 1-digit numbers by splitting them by place value, plus remainders, estimating and word problems.

Alaska content standards learning standard: 4.NBT.5; 4.NBT.6 · multiplying by one digit and dividing with remainders

How we explain it

Children can open this short lesson before they practice.

  1. Break the bigger number into tens and ones.
  2. Multiply each part.
  3. Add the parts back together.

Example: 3 × 24 = ? 24 is 20 + 4. 3 × 20 = 60 and 3 × 4 = 12. 60 + 12 = 72. Answer: 72

Multiply & Divide in Alaska

In the Alaska content standards, this is unit 3 of 15 in 4th grade Math, after Add & Subtract and before Fractions.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Alaska Department of Education and Early Development

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    What is 75 ÷ 5?

    75 ÷ 5 = ?

    answer box

  2. Question 2

    Which shows a way to find 7 × 57?

    • 7 × 50 × 7
    • 7 × 50 + 7 × 7
    • 7 × 50 + 7
    • 7 × 5 + 7 × 7

  3. Question 3

    What is 30 × 8?

    30 × 8 = ?

    • 240
    • 270
    • 24
    • 2400

  4. Question 4

    What is 30 ÷ 7?

    30 ÷ 7

    • 4 R3
    • 3 R9
    • 4 R2
    • 5 R2

  5. Question 5

    What is 139 × 2?

    139 × 2 = ?

    answer box

  6. Question 6

    55 stickers are shared equally among 5 albums. How many stickers go in each album?

    ⭐

    answer box

More 4th grade