Year 6 Mental Subtraction Worksheets (121–123)

🧠 Year 6 Mental Subtraction Worksheets | Large Numbers & Missing Numbers

Help children build speed, confidence and accuracy with mental subtraction using this engaging set of Year 6 maths worksheets. The activities progress from subtracting multiples of 10,000 and 100,000 to more challenging calculations and missing-number problems.

With 45 carefully structured questions, clear layouts and complete answer sheets, this printable resource is ideal for classroom practice, homework, revision, assessment and home learning.

✨ What’s Included?

• 3 printable mental subtraction worksheets

• 3 matching answer sheets

• 45 questions in total

• Subtraction involving numbers up to the millions

• Place-value-based mental subtraction

• More challenging multi-place-value calculations

• Missing-number subtraction problems

• Helpful problem-solving hints

• QR code linking to a supporting instructional video

• Clear, child-friendly page designs

• A4 PDF format

🎯 Skills Covered

Children will practise:

• Subtracting multiples of 1,000, 10,000 and 100,000

• Mentally subtracting from six- and seven-digit numbers

• Using place-value knowledge efficiently

• Breaking subtraction calculations into manageable steps

• Finding missing subtrahends

• Using inverse operations and counting-up strategies

• Improving mental calculation fluency

• Checking whether answers are reasonable

• Developing confidence with large numbers

📚 Perfect For

• Year 6 classroom maths lessons

• Mental maths warm-ups

• Independent classwork

• Homework activities

• Morning work

• Maths intervention and consolidation

• Early-finisher activities

• Revision sessions

• Assessment preparation

• Homeschool maths

• Tutoring and small-group instruction

• Holiday revision

🏆 Useful for NAPLAN and SATs Preparation

These worksheets provide valuable practice with the number knowledge, mental calculation, place value and problem-solving skills commonly needed in:

• Australian NAPLAN numeracy preparation

• UK Year 6 SATs maths preparation

• General end-of-primary-school assessments

• Upper-primary maths revision

This is an independent educational resource and is not affiliated with or endorsed by NAPLAN, ACARA, the UK Department for Education or any official testing organisation.

👩‍🏫 Why Teachers and Parents Will Love It

• Print-and-go format

• No preparation required

• Gradual increase in difficulty

• Answers included for quick marking

• Suitable for independent practice

• Supports both Australian Year 6 and UK Year 6 learners

• Useful for identifying gaps in place-value understanding

• Combines fluency, reasoning and problem solving

📄 Resource Details

• File type: Printable PDF

• Paper size: A4

• Total pages: 6

• Student worksheets: 3

• Answer sheets: 3

• Total questions: 45

• Colour elements with printer-friendly black-and-white activities

• Recommended age: 10–12 years

💡 Teaching Tip

Begin with the first worksheet to reinforce subtraction involving large place-value amounts. Progress to the second worksheet for more complex mental calculations, then use the missing-number activity to develop inverse-operation and problem-solving skills.

📥 Please Note

This is a digital download. No physical product will be posted. After purchasing, download the PDF and print as many copies as permitted under the product licence.