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The m+e+a+n is the sum of all the values 4 divided by the number of values. Key Facts The formula for the circumference of a circle is c = 2  r The mode is the most common value. Think carefully about calculations. Decide whether to use: a mental calculation;.

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  1. The m+e+a+n is the sum of all the values 4 divided by the number of values. • Key Facts • The formula for the circumference of a circle is c = 2  r • The mode is the most common value • Think carefully about calculations. • Decide whether to use: • a mental calculation; • Explain • how you worked out • angles or lengths from • those you were given. • how you came to conclusions a mental calculation with some jottings a written method a calculator Top Tips Pick out important words or symbols Look for words likesum, product, calculate Remember Algebra has the same rules as arithmetic • Check your answer is • sensible • Do a rough estimate • Does your answer feel close ? • Personal! • try to correct your worst habits • write it at the top of your answer • book in pencil • go back and check when you • need them during the exam. • Don’t Do It • Don’t assume a diagram is drawn • accurately • Do not misread scales Check to see that you have got the units correct and that you have written the answer in the correct way • Check to see if you were asked • to give the answer to a certain • number of decimal places or • significant figures Never give the probability of an event as a ratio or as odds

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