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1st grade · Math · Unit 4 of 14

Take Away

How many are left?

What your child practices

Subtracting within 20 by counting back and thinking addition, and solving short take-away and compare stories.

Arizona Academic Standards learning standard: 1.OA.A.1; 1.OA.B.4; 1.OA.C.6 · solving subtraction problems and subtracting as an unknown-addend problem

How we explain it

Children can open this short lesson before they practice.

  1. Taking away means some go away.
  2. Start with the whole group.
  3. Count back the number you take away.

Example: 9 − 4 = ? Start at 9. Count back 4: 8, 7, 6, 5. Answer: 5

Take Away in Arizona

In the Arizona Academic Standards, this is unit 4 of 14 in 1st grade Math, after Adding and before Equal or Not.

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: Arizona 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

    What is 12 − 7?

    12 − 7 = ?

    answer box

  2. Question 2

    What is 11 − 4?

    11 − 4 = ?

    • 9
    • 2
    • 7

  3. Question 3

    Start at 8. Hop back 4. Where do you land?

    0369121518?
    • 1
    • 4
    • 14

  4. Question 4

    There are 14 🐸 on a log. 5 hop away. How many are left?

    🐸14 − 5
    • 9
    • 11
    • 12

  5. Question 5

    5 + 4 = 9. So what is 9 − 4?

    9 − 4 = ?

    • 0
    • 6
    • 5

  6. Question 6

    There are 15 🦋 on a bush. 9 fly away. How many are left?

    🦋15 − 9
    • 8
    • 4
    • 6

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