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F H R1 Converting units and compound units F H R2 Scale factors, scale diagrams and maps F H R3 One quantity as a fraction of another F H R4 Ratio notation and simplifying F H R5 Sharing in a ratio and ratio problems F H R6 Ratios and fractions F H R7 Proportion as equality of ratios F H R8 Ratios, fractions and linear functions F H R9 Percentages and percentage change F H R10 Direct and inverse proportion F H R11 Speed, density, pressure and unit pricing F H R12 Comparing lengths, areas and volumes F H+ R13 Proportion equations F H R14 Gradient as rate of change H R15 Average and instantaneous rates of change F H+ R16 Growth, decay and compound interest