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3rd grade · Math · Unit 2 of 14

Multiplication

Equal groups and arrays

What your child practices

Understanding multiplication as equal groups, arrays, repeated addition and skip counting. Easier sets use 2s, 5s and 10s; stretch sets go beyond 5 × 5.

Alaska content standards learning standard: 3.OA.1; 3.OA.5; 3.OA.7 · multiplication as equal groups, properties of multiplication, and multiplying within 100

How we explain it

Children can open this short lesson before they practice.

  1. Multiplying means equal groups.
  2. 3 × 4 means 3 groups of 4.
  3. An array shows the groups as rows and columns.

Example: 4 × 5 = ? That is 4 groups of 5. 5 + 5 + 5 + 5 = 20. Answer: 20

Multiplication in Alaska

In the Alaska content standards, this is unit 2 of 14 in 3rd grade Math, after Add & Subtract and before Division.

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

    A frog makes 5 hops. Each hop is 2 long. Where does it land?

    0515?
    • 10
    • 12
    • 8
    • 7

  2. Question 2

    What is 2 × 4?

    2 × 4 = ?

    answer box

  3. Question 3

    Which multiplication matches the array?

    • 2 × 5
    • 2 + 4
    • 3 × 4
    • 2 × 4

  4. Question 4

    3 × 5 = 15. So what is 5 × 3?

    5 × 3 = ?

    • 15
    • 18
    • 8
    • 10

  5. Question 5

    Which multiplication means the same as this?

    4 + 4 + 4 + 4

    • 4 + 4
    • 4 × 5
    • 5 × 4
    • 4 × 4

  6. Question 6

    What is 3 × 2?

    3 × 2 = ?

    • 6
    • 4
    • 9
    • 8

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