Prime, factors and multiples assessment worksheets that contains 20 challenging and exhaustive questions that cover the following areas: 1) Multiples and Least Common Multiple (LCM). 2) Prime numbers. 3) Factors and Highest Common Factor (HCF). 4) Factor tree (for computing HCF and square roots). 5) Problem solving. The worksheet is designed more on the difficult/challenging side. It is designed to be completed within 2 hours time, and targets grades 5 - 7. Include the answer key.
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