27n: Simplifying ratios and identifying fractions from ratios
40n: Share a quantity in a two part or three part ratio
41n: Solve ratio problems without the original amount
42n: Solve proportion problems by a unitary method
43n: Comparing value for money by finding the cost of comparable amounts and work with unit prices
46n: Use an exchange rate to convert between currency
59n: Solving problems using a combination of percentages, fractions and ratio
60n: Adjust a recipe or check if there are enough ingredients to make a given number
73n: Solve hard ratio problems involving combining two or more ratios
