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Kindergarten · Math · Unit 7 of 13

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.

New York State Learning Standards learning standard: NY-K.CC.2; NY-K.CC.3; NY-K.CC.5 · counting forward from a given number and writing a number for up to 20 objects

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 New York

In the New York State Learning Standards, this is unit 7 of 13 in Kindergarten Math, after Patterns 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: 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

    Count backward. What comes before 13?

    910111314151617?
    • 16
    • 12
    • 11

  2. Question 2

    What is 1 less than 14?

    • 18
    • 7
    • 13

  3. Question 3

    How many 🐥?

    • 15
    • 9
    • 7

  4. Question 4

    Which number is less?

    4 7

    • 4
    • 7

  5. Question 5

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

    • 2
    • 3
    • 6

  6. Question 6

    Start at 4. Count on 3 more. Where do you stop?

    3456789
    • 7
    • 11
    • 10

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