FREE Highest Common Factors and Lowest Common Multiples | Maths Codebreaker | Answers Included

FREE DOWNLOAD - no purchase required.

Find highest common factors and lowest common multiples in practical contexts.

This FREE resource contains one complete A4 pupil worksheet with 21 questions and a matching answer page with workings, plus a product-family guide. Pupils solve the maths, match answers to letters in the code grid and decode the hidden words.

Difficulty: Level 2 of 10 within this range (1 is easiest; 10 is most demanding). These levels are a guide to relative challenge, not GCSE grades.

Three questions from this worksheet:
1. Two bells ring every 6 and 21 minutes. They ring together now. After how many minutes will they next ring together?
2. Ribbons 55 cm and 65 cm long are cut into equal whole-number lengths with no waste. Find the greatest possible length of each piece, in cm.
3. Find the highest common factor of 10 and 20.

Use for focused practice, consolidation, homework or a lesson activity after teaching the method. Print the pupil page for learners and retain the answer page for checking. Follow the rounding and unit instructions on the sheet.

This resource belongs to a completed 100-topic Maths Codebreakers range. Halloween codebreaker resources are also available. A mixed-topic revision codebreaker range is coming soon. These other ranges are separate resources and are not included in this download.