Free printable practice
3 Digits Practice Activities
Printable maths drill worksheets for practising 3 digit subtraction with place value, careful column work and regrouping.
Practice that builds confidence
What children build
These printable 3 digit subtraction worksheets help children move from careful column subtraction to quicker, more confident maths drill practice. They practise subtracting hundreds, tens and ones, including questions that may need regrouping across place values.
Activities use clear vertical sums, mixed 3 digit problems and space for working so children can line up digits correctly. The collection is suited for extra class practice, revision at home or short fluency sessions after the subtraction method has been taught.
Three digit subtraction asks children to keep hundreds, tens and ones in the correct columns while finding the difference between two numbers. In this Mathematics > Math Drills > Subtraction set, the focus is fluency: reading a subtraction sum, setting out the work neatly and subtracting each place value without losing track of the number.

From place value to regrouping
Children first strengthen the idea that 642 - 318 means subtracting ones from ones, tens from tens and hundreds from hundreds. When a digit on top is smaller, they practise regrouping, often called borrowing, from the next place. This is where many learners need repeated, well-spaced practice, especially with zeros or with regrouping across more than one column.
A simple home routine
Parents can choose a small set of sums and ask the child to say the place values before solving: “ones column, tens column, hundreds column.” After every few questions, let the child check one answer by addition, for example, difference + smaller number = bigger number. This turns drill practice into understanding, not just speed.

Classroom uses
Teachers can use these sheets for morning maths practice, subtraction revision, homework, remedial groups or quick assessment after teaching the column method. The format also works well for pair checking: one child solves while another checks digit alignment and regrouping marks.

Common errors to watch for
Children may subtract the smaller digit from the larger digit in each column, even when the larger digit is at the bottom. Others forget to reduce the tens or hundreds after regrouping, or they misalign digits and treat a tens digit like a ones digit. Encourage slow, neat working before building speed.
Free printable PDF download
Use this 3 digit subtraction 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
The worksheets give focused 3 digit subtraction practice without mixing in unrelated skills. Clear layouts, repeated examples of the same operation and enough working space help children notice patterns, correct errors and gain confidence. A child-friendly strategy is: line up, look right, regroup if needed, subtract, then check.
Helpful answers
Frequently asked questions
What skill do these 3 digit subtraction worksheets practise?
They practise subtracting 3 digit numbers using column subtraction, with attention to hundreds, tens and ones. Some questions may involve regrouping, so children learn to manage borrowing accurately.
Are these worksheets only for children who already know borrowing?
They are best used after the child has been introduced to the column method. If regrouping is still new, start with a few sums together and ask the child to explain each borrowing step aloud.
How can my child check a 3 digit subtraction answer?
Use addition to check. Add the answer to the number that was subtracted; the total should match the starting number. For example, if 642 - 318 = 324, then 324 + 318 should equal 642.
What mistakes are common in 3 digit subtraction?
Common mistakes include misaligning digits, forgetting to reduce a column after regrouping, subtracting the smaller digit from the larger digit regardless of position, and rushing through zeros.
Can teachers use these as maths drill worksheets in class?
Yes. They work well for short fluency practice, revision after teaching subtraction, homework, remedial support, or quick checks to see who needs more help with regrouping and place value.
Is this 3 digit subtraction worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this 3 digit subtraction 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 3 digit subtraction 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.