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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.

Subtraction snakes

A ‘subtraction snake’ is presented, the rule to find the next number in the snake is to find the difference of the two numbers that come before it. Some questions are posed about starting numbers and end results in work on Highest Common Factors. This resource is suitable for Key Stage 3.

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