To show one number as a % of a larger number: - Divide the smaller number by the larger number, then x by 100, To find a fraction of a number: - divide it by the bottom number of the fraction, then multiply by the top number of the fraction., To find how many parts people get in a ratio: - add up the parts of the ratio, divide the amount you had to share by the answer, then multiply that answer by each part, To find the probability (chance) of something: - divide the thing you want to happen by how many things could happen, then times by 100, To find the area of: - A square – side x side, A rectangle – length x width, A triangle – base x height divided by 2, A circle – 3.14 x radius x radius (radius – half way across a circle), To find the mode, median, mean and range: - MO - most common number, MD – Middle number, ME – Add all numbers up + divide by how many there are, RA – Biggest take smallest,

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