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1st grade · Math · Unit 2 of 16

Make 10

Two numbers that make 10

What your child practices

Finding pairs that make 10 (like 6 + 4) with ten frames, fingers and stories. Making 10 is a key strategy for adding.

New York State Learning Standards learning standard: NY-1.OA.3; NY-1.OA.6a · using properties of operations and making ten to add within 20

How we explain it

Children can open this short lesson before they practice.

  1. Some pairs make 10: 6 and 4, 7 and 3, 8 and 2.
  2. Start at one number and count up to 10.
  3. The steps you counted are the other number.

Example: 7 + ? = 10 Start at 7. Count up: 8, 9, 10. That is 3 steps. Answer: 3

Make 10 in New York

In the New York State Learning Standards, this is unit 2 of 16 in 1st grade Math, after Numbers to 20 and before Adding.

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: New York State Education Department (NYSED)

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

    Which two numbers make 10?

    🔟
    • 9 + 1
    • 3 + 4
    • 2 + 6

  2. Question 2

    Noah has 2 🌸. How many more to make 10?

    🌸🌸
    • 4
    • 10
    • 8

  3. Question 3

    What number makes 10?

    4 + = 10

    • 0
    • 3
    • 6

  4. Question 4

    What number is missing?

    10 = 7 +

    • 5
    • 3
    • 1

  5. Question 5

    6 + 4 = 10. So what is 4 + 6?

    4 + 6 = ?

    • 13
    • 14
    • 10

  6. Question 6

    How many more 🔴 make 10?

    🔴🔴🔴🔴🔴🔴⚪⚪⚪⚪
    • 4
    • 8
    • 2

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