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Percentages
Part/Total * 100
Percentage to decimal
Divide by 100
Decimal to percentage
Multiply by 100
Standard form
Used to express very large or small numbers.
(number between 1 and 10) x 10^(power of x)
^ = exponent
Working out standard form
If x is positive, move decimal places x times to the right
If x is negative, move decimal places x times to the left