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Factors, multiples, primes and HCF/LCM – Year 10 GCSE maths starters to download as PDF

Year 10 factors, multiples, primes and HCF/LCM starters – Otto the owl, Maths PDF
GCSE Maths Year 10 – Worksheets with Answers – PDF
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These Year 10 factors, multiples, primes and HCF/LCM starters are 10 quick mental maths questions for pupils aged 14-15. Use them in the first five minutes of a lesson or as a daily warm-up at home.

Year 10 factors, multiples, primes and HCF/LCM starters: the 10 questions

How to use these Year 10 factors, multiples, primes and HCF/LCM starters

First, give yourself about 30 seconds for each question. Then write the answer down before you check it. If an answer is wrong, look at the factors, multiples, primes and HCF/LCM lesson again. After that, move on to the factors, multiples, primes and HCF/LCM worksheet for longer questions.

Finally, repeat these starters a few days later, because regular practice makes the facts automatic. Moreover, all the pages of this chapter work together, so you can move between them at any time. For example, many pupils read the lesson on Monday, practise on Wednesday and test themselves on Friday.