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5th grade · Math · Unit 2 of 14

Multiply

Multiply up to three digits

What your child practices

Multiplying 2- and 3-digit numbers using area models and partial products, patterns with 10, 100 and 1000, doubling and halving, and estimating products by rounding.

Alaska content standards learning standard: 5.NBT.5 · fluently multiplying multi-digit whole numbers

How we explain it

Children can open this short lesson before they practice.

  1. Break the bigger number into place values.
  2. Multiply each part, then add the parts together.
  3. Estimate by rounding to check your answer makes sense.

Example: 23 × 14 = ? 23 × 10 = 230. 23 × 4 = 92. 230 + 92 = 322. Answer: 322

Multiply in Alaska

In the Alaska content standards, this is unit 2 of 14 in 5th grade Math, after Numbers to a Million and before Divide.

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

    Round each factor to the nearest ten. What is the estimate for 48 × 17?

    • 100
    • 10,000
    • 1200
    • 1000

  2. Question 2

    A team orders 34 T-shirts at $17 each, plus a $25 delivery fee. What is the total cost in dollars?

    answer box

  3. Question 3

    Multiply.

    299 × 8 = ?

    answer box

  4. Question 4

    Which product is the greatest?

    • 37 × 20
    • 15 × 33
    • 28 × 32
    • 43 × 27

  5. Question 5

    A school orders 619 boxes of pencils with 6 pencils in each box. How many pencils is that?

    answer boxpencils

  6. Question 6

    Multiply using a pattern.

    18 × 1000 = ?

    answer box

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