Column subtraction.
Make space for place value. Create a worksheet, then practise exactly the same questions in your notebook.
Column subtraction
Name: ____________________ Date: ______________
Work from ones to hundreds. Use the small row for carrying or exchanging.
Numihana · England Year 3 · Column subtraction · Worksheet preview
Column subtraction — answer key
Numihana · England Year 3 · Column subtraction · Answer key
Create a worksheet pack
Prepare several days of practice in one go, then print or save a PDF.
Keep the same topic and difficulty, with a different problem set on each worksheet. Questions can repeat for practice.
Handwrite on screen
Use a tablet to write directly on the worksheet and mark it with a red pen.
Understand every exchange.
Use written column methods to add and subtract numbers with up to three digits.
This resource targets the statutory England Year 3 written-addition and subtraction objective. Schools can sequence content flexibly within the key stage. It covers selected arithmetic skills, rather than the whole Year 3 curriculum.
Department for Education: Year 3, Number — Addition and subtraction ↗
Source edition: GOV.UK programmes of study, updated 28 September 2021. Pack 1.0.0.
For teachers & parents
Begin with two digits if the learner needs support. Align ones under ones, tens under tens and hundreds under hundreds. Ask the learner to estimate before calculating, then use the inverse operation to check.
A common slip
When exchanging across zero, exchange a hundred for ten tens first. Then exchange one of those tens for ten ones: nine tens remain. Avoid subtracting the smaller digit from the larger regardless of position.
Try column addition →Exchange 1 hundred for 10 tens, then 1 ten for 10 ones. The top number is now 4 hundreds, 9 tens and 13 ones. Subtract each column.
Check:225 + 278 = 503.