Mathness!Math Worksheets Open the kindergarten sheets

Writing numbers

Writing the numbers 0 to 20, and using a number to show how many things are in a picture.

Make a sheetDownload PDFThe PDF has this sheet, its answer key and a guide for grown-ups.

How to help

Count the pictures one at a time, touching each one. The last number you say is how many: write that number.

Watch for: Writing a number backwards, like a flipped 3, 7 or 9. Swapping the digits of a teen number: 71 for 17. Counting a picture twice, so the number is one too many.

At home: Write numbers big in the air, in sand or on a steamy window. Then ask your child to count out that many spoons or socks.

Sample sheet and answer key

Freddie's Frog Pond

Kindergarten · Writing numbers · K.CC.A.3

NameDate

Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!

Trace and write

Trace the dotted numbers, then write your own.

444444444488888888881111111111

How many?

Count, then write the number.

Mathness! Math Worksheets · © 2026 Zubin KhavarianCode KCCA3-PO-FIRST at mathness.app
Sheet

Freddie's Frog Pond

Kindergarten · Writing numbers · K.CC.A.3

Answer key

Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!

Trace and write

Trace the dotted numbers, then write your own.

444444444488888888881111111111

How many?

Count, then write the number.

2
11
10
6
Mathness! Math Worksheets · © 2026 Zubin KhavarianCode KCCA3-PO-FIRST at mathness.appAnswer key
Answer key

New problems every time, three levels (gentle, core and stretch), themes to pick from, a second page if you want one. Each sheet comes with an answer key and a one-page guide for grown-ups.

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Standard

Common Core K.CC.A.3 · Write numbers 0–20 and use a numeral to show how many.

Also: Maryland 2025 K.NOS.A.5 · Texas TEKS K.2B · Florida B.E.S.T. MA.K.NSO.1.1 · Virginia SOL K.NS.2

More kindergarten sheets: counting