Free printable practice
Missing Place Value 3 Digit Number Practice Activities
Grade 3 worksheets for finding missing hundreds, tens, or ones in 3-digit numbers using place value charts, expanded form, and number clues.
Practice that builds confidence
Understanding the missing value
These Grade 3 math worksheets help children find the missing place value in 3-digit numbers. Students practise identifying whether a blank represents hundreds, tens, or ones and connect each digit to its value.
The printable activities include place value charts, expanded form problems, number-building tasks, and missing-value questions such as 583 = 500 + __ + 3. They build accuracy before children move into rounding and larger numbers.
A 3-digit number is built from hundreds, tens, and ones. In these worksheets, children do more than name the digits; they decide what value is missing. For example, in 347 = __ + 40 + 7, the blank is 300, not 3. This helps students see that a digit changes value depending on its place.

How the practice progresses
Activities usually begin with clear place value charts so children can match each digit to hundreds, tens, and ones. They then work with expanded form, number clues, and equations with one missing part. Some questions ask for the missing digit, while others ask for the missing value, giving students practice reading the direction carefully.
A simple parent routine
At home, choose one 3-digit number and say it aloud, such as 426. Ask your child to write it in expanded form, cover one part, and identify what is hidden. Rotate the blank: 400 + 20 + __, 400 + __ + 6, or __ + 20 + 6. Encourage your child to explain how they know, using the words hundreds, tens, and ones.

Classroom uses
Teachers can use these printables for place value review, morning work, small-group reteaching, or math centers. They are also useful before rounding lessons because students who know that 572 has 7 tens and 500 as its hundreds value are better prepared to compare and round numbers.

Common errors to watch for
Many Grade 3 students confuse digit and value. They may write 5 instead of 500 for the hundreds place, or 8 instead of 80 for the tens place. Others fill the blank by copying a digit without checking the whole number. A quick place value chart or base-ten sketch can reveal the mistake.
Free printable PDF download
Use this missing place value 3 digit number 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 repeated, focused practice with small changes from one problem to the next. Children learn a child-friendly strategy: read the number, name each place, write the value, then check that the parts add back to the original 3-digit number.
Helpful answers
Frequently asked questions
What does missing place value mean in a 3-digit number?
It means one part of the number is blank, such as the hundreds, tens, or ones value. For example, in 629 = 600 + __ + 9, the missing value is 20.
Should my child write the digit or the value in the blank?
It depends on the question. If the worksheet shows expanded form, the blank usually needs the value, such as 70. If it asks for the digit in the tens place, the answer would be 7.
Why are these worksheets useful before rounding?
Rounding is easier when children understand the value of each digit. A student who knows the tens digit and ones digit in a 3-digit number can make better decisions when rounding to the nearest ten or hundred.
How can I help if my child keeps writing 4 instead of 400?
Have your child place the number in a hundreds-tens-ones chart and say the full value aloud: 4 hundreds means 400. Drawing base-ten blocks can also make the value visible.
Are these activities only for review?
No. They can be used for initial practice, reteaching, homework, math centers, or quick checks after a lesson on 3-digit place value.
Is this missing place value 3 digit number worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this missing place value 3 digit number 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 missing place value 3 digit number 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.