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Rounding to Significant Figures (with questions and answers)
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Rounding to Significant Figures (with questions and answers)

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PowerPoint slide show with step by step animated examples of how round numbers to a given number of significant figures. The slides include an algorithm to model the method that pupils can copy. Then questions, with answers that appear on clicks. Suitable for specialist and non-specialist Maths teachers. No password protection, so you can customise it at will!
Expressing Numbers as Products of Prime Factors (with questions and answers)
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Expressing Numbers as Products of Prime Factors (with questions and answers)

(0)
PowerPoint slide show with step by step animated examples of how calculate use factor trees to express numbers as products of primes. The slides include an algorithm to model the method that pupils can copy. Then questions, with answers that appear on clicks. Suitable for specialist and non-specialist Maths teachers. No password protection, so you can customise it at will!