1st grade tens & ones worksheets

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Tens and ones worksheets show first graders base-ten rods and unit blocks; your child counts the tens, counts the ones, and writes the two-digit number: 43 as four tens and three ones, not just a four next to a three.

Free printable PDF worksheet, aligned to Common Core 1.NBT.B.2.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of problems you'll get

Use the blocks or place values to write each number.

  1. 2 tens, 4 ones

    Answer: 24

  2. 8 tens, 3 ones

    Answer: 83

  3. 9 ones, 2 tens

    Answer: 29

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on a 1st grade sheet

The sample sheet above has 8 problems. Its answers run from 13 to 87.

Every version prints on US Letter or A4, with its answer key after the problems.

How to teach this

Have your child count the rods by tens aloud, then count on the ones: "10, 20, 30, 40... 41, 42, 43." Ask "how many tens?" before they write, so the digit connects to the blocks. Problems with zero ones, like 60, deserve a pause. That empty ones place is where the idea really sticks.

Watch for: Kids count every block as one, calling a ten-rod 'one.' Count the rods by tens out loud: 10, 20, 30. Kids reverse the digits and write 34 for 4 tens and 3 ones. The tens digit always comes first in a two-digit number.

Common questions about 1st grade tens & ones

What are the rods and small squares in the pictures?
Base-ten blocks: a rod stands for one ten and a small square for one. Counting them links a written number to the amount it means.
How big do the numbers get?
Everything stays within two digits, up to 99, matching the first grade standard. Each print draws a fresh set of numbers.

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Aligned to Common Core 1.NBT.B.2. Reviewed by the One more sheet team. Content version 241, updated September 2026.

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