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Kindergarten · Math · Unit 2 of 12

Numbers to 20

Count, read and compare numbers

What your child practices

Counting to 20 forward and back from any number, recognizing small groups at a glance, and comparing two numbers.

Texas Essential Knowledge and Skills (TEKS) teks student expectation: K.2(A); K.2(B); K.2(F) · counting forward and backward to 20, reading and writing numbers to 20, and one more and one less

How we explain it

Children can open this short lesson before they practice.

  1. Count each thing once. Do not skip any.
  2. To count on, say the next number: 14, then 15.
  3. Counting back goes the other way: 15, 14, 13.

Example: What is 1 more than 14? Count on from 14. The next number is 15. Answer: 15

Numbers to 20 in Texas

In the Texas Essential Knowledge and Skills (TEKS), this is unit 2 of 12 in Kindergarten Math, after Count to 10 and before See It Fast.

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 1 more than 2?

    • 9
    • 0
    • 3

  2. Question 2

    Which number is less?

    12 11

    • 11
    • 12

  3. Question 3

    Count backward. What comes before 6?

    234678910?
    • 5
    • 4
    • 15

  4. Question 4

    Count forward. What comes after 7?

    3456791011?
    • 6
    • 8
    • 7

  5. Question 5

    How many 🐟?

    • 9
    • 13
    • 17

  6. Question 6

    How many dots? Try not to count them one by one.

    • 2
    • 3
    • 5

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