Maths revision

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Bidmas Brackets Indices Division Multiplication Addition Subtraction
Integer A whole number
Mean Mode Median Range Mean - Add all the numbers up. Mode - The number what appears the most often. Median - Add all the numbers up then divide how many there is. Range - The difference between the smallest and largest number.
Fractions When fractionating a number you divide the number by the denominator then times it by the numerator.
Percentages Percentages are when you change the denominator to 100 then you do the same sum to the numerator then that is the percentage.
Ratio share £40 in ration of 1:3 1. add 1 and 3 together 2. 40 divide by 4 equals 10 3. 10 time 1 then 10 time 3 4. answer 10:30
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