Free printable practice
Write Numbers Expanded Form Practice Activities
Grade 1 place value worksheets that help children write two-digit numbers in expanded form using tens and ones.
Free printable worksheet PDFs
Preview every available page, then download the free worksheet PDF for home, homeschool, tutoring, or classroom practice.
Preview the exact activity before downloading it.
Practice that builds confidence
From place value to expanded form
These Grade 1 math worksheets help children connect a two-digit number to its tens and ones, then write it in expanded form. Students practise seeing that 47 means 4 tens and 7 ones, so it can be written as 40 + 7.
The printable activities include clear number-writing practice, place value thinking, and examples that build from simple tens-and-ones numbers to mixed two-digit numbers. Children strengthen number sense while learning the vocabulary of digit, tens, ones, value, and expanded form.
Expanded form shows the value of each digit in a number. In Grade 1, this usually means breaking a two-digit number into tens and ones: 62 becomes 60 + 2. The goal is not just to copy a pattern, but to understand that the 6 in 62 is worth 6 tens, not 6 ones.
What children practise on the page
These worksheets move children from reading a two-digit number to identifying the tens digit and ones digit, then writing the number as an addition sentence. A child may see 35, think “3 tens and 5 ones,” and write 30 + 5. Numbers with zero ones, such as 40 = 40 + 0, are useful because they show that the ones place still matters even when there are no extra ones.
A simple parent routine
At home, choose one number from the worksheet and build it with objects: bundles of 10 straws and single straws, dimes and pennies, or quick drawings of tens rods and dots. Ask, “How many tens? How many ones? What is the value of the tens digit?” Then have your child say the expanded form aloud before writing it. Keep the talk short and focused: number, tens, ones, expanded form.
Classroom uses for teachers
Teachers can use these pages during a place value lesson, in math centers, as morning work, or for small-group reteaching. They also work well after students have used base-ten blocks, because the written practice helps children move from concrete models to numbers and symbols. Students can compare answers with a partner and explain why 58 is 50 + 8, not 5 + 8.
Common errors to watch for
Some children write the digits separately, such as 74 = 7 + 4, because they see the digits but miss the digit values. Others reverse tens and ones, writing 29 as 20 + 9 in one problem and 90 + 2 in the next. Encourage them to point to each digit and name its place before writing the value.
Free printable PDF download
Use this grade 1 expanded form worksheet page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Why iBloom worksheets help
iBloom worksheets give first graders repeated, uncluttered practice with one important place value skill at a time. The child-friendly strategy is: “Say the number, circle the tens digit, write its tens value, then add the ones.” This routine helps expanded form become a meaningful way to describe numbers, not a memorized trick.
Helpful answers
Frequently asked questions
What does expanded form mean in Grade 1?
In Grade 1, expanded form usually means writing a two-digit number as tens plus ones, such as 46 = 40 + 6.
Which numbers are best for first graders learning expanded form?
Two-digit numbers are most appropriate, especially numbers that clearly show tens and ones, such as 23, 58, 70, and 91.
How can I help my child if they write 83 as 8 + 3?
Use place value language. Ask your child to identify the tens digit and explain that the 8 means 8 tens, so its value is 80.
Should children use blocks before these worksheets?
Hands-on models such as tens rods, ones cubes, straw bundles, or drawings can help children understand the worksheet problems more deeply.
Do these worksheets include numbers with zero ones?
Expanded form practice may include numbers like 30 or 60 so children learn that a zero in the ones place still has meaning.
Is this grade 1 expanded form worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this grade 1 expanded form worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this grade 1 expanded form worksheet include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.