Percentages and ratios
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Percentages
1Convert between fractions, decimals and percentagesOpen, set of 8START2Find a percentage of a quantityOpen, set of 8START3Express one quantity as a percentage of anotherOpen, set of 8START4Find the original amount from a percentageOpen, set of 8START
Percentage change
5Increase or decrease a quantity by a percentageOpen, set of 8START6Find percentage changeOpen, set of 8START
GST
7Add GST to a priceOpen, set of 8START8Find the GST and the pre-GST price from an inclusive priceOpen, set of 8START
Ratio and proportion
9Express a ratio in simplest formOpen, set of 8START10Complete an equivalent ratioOpen, set of 8START
Dividing in a ratio
11Divide a quantity in a given ratioOpen, set of 8START12Use one known part of a ratio to find the othersOpen, set of 8START
Unitary method