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Break it Apart Counting Tens Ones Worksheet

Count the tens and ones in six base-ten pictures, fill in the chart, and write the number. This Break it Apart Counting Tens Ones Worksheet builds 1st grade place value confidence, and an answer key is included.

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About this resource

Description

Breaking a two-digit number apart into tens and ones is the foundation of place value in first grade. When a child sees that 24 is really 2 tens and 4 ones, numbers stop being symbols to memorize and start making sense. The Break it Apart Counting Tens Ones Worksheet gives students six base-ten pictures to count, chart, and name, so they practice moving between a picture of tens and ones, the two digits in a place-value chart, and the whole number those digits create.

This first grade tens and ones worksheet has two parts. In Part A, students count the ten-rods and unit cubes in each picture, write the two digits in a tens and ones chart, and then write the whole number on the line below. In Part B the pictures come away: students read a number and write how many tens and ones it holds, including one number with a zero in the ones place. Print it and hand it out as morning work, guided practice, a math-center task, or homework. An answer key is included, so checking a whole class takes seconds.

What’s Included

  • 1 print-ready PDF worksheet
  • Answer key
  • 6 base-ten picture problems with a tens and ones chart
  • 3 write-the-tens-and-ones problems with no picture support

Three things make this resource work. First, it moves in the right order — picture, then chart, then number — so every child has something concrete to hold on to before the abstract step. Second, the tens and ones chart is printed on every problem, which builds the habit of lining digits up by place instead of guessing which digit goes where. Third, the Break it Apart Counting Tens Ones Worksheet finishes with problems that show no picture at all, so students have to carry the tens-and-ones idea in their heads. That transfer is exactly what first grade place value assessments ask for.

Teachers and parents can keep the skill going away from the page. Bundle ten craft sticks with a rubber band and let children build numbers on the table, trading ten loose sticks for a new bundle every time they get there. Call out a number and have your child grab that many tens and ones. Snap linking cubes into sticks of ten during clean-up time. Ask quick place value questions in the car or at the store — how many tens are in 40, and how many ones are left over in 46? A few minutes of spoken practice makes the written work much faster.

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