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2nd grade · Math · Unit 10 of 16

Even, Odd and Ordinals

Pair things up, and say who is first, second or third.

What your child practices

Deciding whether a number up to 100 is even or odd by making pairs, and using ordinal numbers for position.

Alaska content standards learning standard: 2.OA.3 · deciding whether a group has an odd or even number of objects

How we explain it

Children can open this short lesson before they practice.

  1. Even numbers can make pairs with none left over.
  2. Odd numbers leave one left over.
  3. Even numbers end in 0, 2, 4, 6 or 8.

Example: Is 25 even or odd? It ends in 5. Odd numbers end in 1, 3, 5, 7 or 9. Answer: Odd

Even, Odd and Ordinals in Alaska

In the Alaska content standards, this is unit 10 of 16 in 2nd grade Math, after Skip Counting and before Dollars & Cents.

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

    Is 25 even or odd?

    • odd
    • even
    • neither

  2. Question 2

    What is the 1st month of the year?

    • December
    • January
    • February

  3. Question 3

    Is 10 even or odd?

    • neither
    • even
    • odd

  4. Question 4

    Which group of counters can be put into pairs with none left over?

    • 11 counters
    • 13 counters
    • 12 counters

  5. Question 5

    Is 18 even or odd?

    • odd
    • even
    • neither

  6. Question 6

    Is 5 + 5 even or odd?

    • odd
    • even
    • neither

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