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1st grade · Math · Unit 7 of 16

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.

Texas Essential Knowledge and Skills (TEKS) teks student expectation: 1.3(B); 1.3(D); 1.5(F) · solving separating word problems, subtracting within 20, and finding an unknown number

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 Texas

In the Texas Essential Knowledge and Skills (TEKS), this is unit 7 of 16 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: 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

    What is 20 − 9?

    20 − 9 = ?

    • 11
    • 14
    • 6

  2. Question 2

    8 + 3 = 11. So what is 11 − 3?

    11 − 3 = ?

    • 8
    • 5
    • 4

  3. Question 3

    There are 16 🦆 in a pond. 6 swim away. How many are left?

    🦆16 − 6
    • 10
    • 20
    • 4

  4. Question 4

    Lena had 8 🍇 and ate 6. How many are left?

    🍇🍇❌❌❌❌❌❌
    • 3
    • 2
    • 7

  5. Question 5

    There are 19 🐸 on a log. 6 hop away. How many are left?

    🐸19 − 6
    • 10
    • 3
    • 13

  6. Question 6

    What is 12 − 8?

    12 − 8 = ?

    • 8
    • 6
    • 4

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