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Kindergarten · Math · Unit 3 of 10

Add & Take Away

Join and take away

What your child practices

Small story problems where some join or some leave (totals to 10), plus finding one more and one less.

Arizona Academic Standards learning standard: K.OA.A.1; K.OA.A.2; K.OA.A.5 · showing and solving addition and subtraction stories within 10, and adding and subtracting within 5

How we explain it

Children can open this short lesson before they practice.

  1. Adding puts groups together.
  2. Taking away means some go away.
  3. Count what is left or what you have in all.

Example: 3 birds sit on a branch. 2 more fly in. How many now? Start with 3. Count on 2 more: 4, 5. Answer: 5 birds

Add & Take Away in Arizona

In the Arizona Academic Standards, this is unit 3 of 10 in Kindergarten Math, after Make 5 and 10 and before More, Less, Same.

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

    5 🐞 are here. 3 more land. How many now?

    🐞🐞🐞🐞🐞➕🐞🐞🐞
    • 10
    • 8
    • 7

  2. Question 2

    Leo has 2 🍎 and gets 1 more. How many now?

    🍎🍎➕🍎
    • 3
    • 1
    • 5

  3. Question 3

    7 🐟 are here. 1 swims away. How many are left?

    🐟🐟🐟🐟🐟🐟🐟
    • 6
    • 5
    • 4

  4. Question 4

    2 🐰 are here. 1 more hops in. How many now?

    🐰🐰➕🐰
    • 2
    • 5
    • 3

  5. Question 5

    What is 1 less than 4?

    • 2
    • 5
    • 3

  6. Question 6

    8 🐸 are here. 2 hop away. How many are left?

    🐸🐸🐸🐸🐸🐸🐸🐸
    • 4
    • 7
    • 6

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