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Fast Arithmetic Tips Mental Calculations - Getting the result fast 1. Multiplication by 5 It's often more convenient instead of multiplying by 5 to multiply first by…

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MEP Book 1: Copy Masters © CIMT, Plymouth University m e p LP 113/2 18 eighteen XVIII10 1 1 11 1 1 11 MEP Book 1: Copy Masters © CIMT, Plymouth University m e p LP…

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Slide 1 Counting Techniques REVIEW PERMUTATION/COMBINATION Counting Techniques #1 How many times are you asked to choose/decide? Review 1 How many possible outcomes result…