Kindergarten · Math · Number sense

Kindergarten Teen Numbers as Ten and Ones worksheets

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Teen Numbers as Ten and Ones

Kindergarten Math Worksheet

NameDate

Write the missing number.

10 + ____ = 12
10 + ____ = 13
10 + ____ = 15
10 + ____ = 17
10 + ____ = 18
10 + ____ = 19

Kindergarten Teen Numbers as Ten and Ones worksheet 1 – printable PDF — Download PDF: 1 2 3 4 5 6

About this worksheet

Teen numbers are the bridge between counting individual objects and understanding place value. Each number from 11 through 19 is one ten and some ones, but the spoken words hide this: thirteen does not sound like ten and three. On this page every item shows the same picture, a full ten frame and a few extra dots, with a sentence beside it, such as 10 + __ = 13. The child counts the extra dots, or works out how many more than ten, and writes the missing number.

Because the frame is always full and the extra dots always sit in the second frame, the child sees the ten and the ones as two separate parts. Say the teen number out loud as ten and three more before writing, and the pattern in the number names becomes easier to hear.

What your child will learn

See a teen number as a ten and some ones
Find the number of extra ones
Read 10 + 3 = 13
Match a number to a picture

Common Core standard: K.NBT.A.1

Worked example

One full ten frame and four extra dots show ten and four more, which is 14: 10 + 4 = 14.

Common mistake

Writing the ones digit first because the spoken word names that part before ten.

Helpful hint

Name the full group of ten first, then count the extra ones.

Next skill: Teen Number Missing Parts Earlier: Ways to Make 10

Questions parents ask

What is the most common mistake with teen numbers as ten and ones?

Writing the ones digit first because the spoken word names that part before ten.

How can I help my child with teen numbers as ten and ones?

Name the full group of ten first, then count the extra ones.

Are these kindergarten math worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

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