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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.

Maine Learning Results learning standard: 3.OA.A.1; 3.OA.B.5; 3.OA.C.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 Maine

In the Maine Learning Results, 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: Maine Department of Education

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?
    • 7
    • 10
    • 8
    • 12

  2. Question 2

    Priya has 2 vases with 5 flowers in each vase. How many flowers in all?

    🌷2 groups of 5

    answer box

  3. Question 3

    What is 5 × 4?

    5 × 4 = ?

    answer box

  4. Question 4

    What is 5 × 3?

    5 × 3 = ?

    • 20
    • 12
    • 18
    • 15

  5. Question 5

    Which multiplication matches the array?

    • 2 × 6
    • 2 × 5
    • 3 × 5
    • 2 + 5

  6. Question 6

    3 × 5 = 15. So what is 5 × 3?

    5 × 3 = ?

    • 8
    • 10
    • 18
    • 15

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