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2nd grade · Math · Unit 4 of 19

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.

Texas Essential Knowledge and Skills (TEKS) teks student expectation: 2.7(A) · telling whether a number is even or odd

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 Texas

In the Texas Essential Knowledge and Skills (TEKS), this is unit 4 of 19 in 2nd grade Math, after Skip Counting and before Facts to 20.

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: Texas Education Agency (TEA)

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

    9 children make pairs. How many are left without a partner?

    • 2
    • 0
    • 1

  2. Question 2

    Is 51 even or odd?

    • even
    • neither
    • odd

  3. Question 3

    Pick the odd number.

    • 47
    • 46
    • 48

  4. Question 4

    Is 10 even or odd?

    • neither
    • even
    • odd

  5. Question 5

    Is 7 even or odd?

    • neither
    • odd
    • even

  6. Question 6

    Is 5 + 5 even or odd?

    • neither
    • even
    • odd

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