# Ratios and proportions

Here is a list of all of the skills that cover ratios and proportions! These skills are organized by grade, and you can move your mouse over any skill name to preview the skill. To start practising, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

## Grade 7 skills

- L.1 Understanding ratios
- L.2 Identify equivalent ratios
- L.3 Write an equivalent ratio
- L.4 Equivalent ratios: word problems
- L.5 Unit rates
- L.6 Compare ratios: word problems
- L.7 Scale drawings: word problems
- L.8 Do the ratios form a proportion?
- L.9 Do the ratios form a proportion: word problems
- L.10 Solve proportions
- L.11 Solve proportions: word problems
- L.12 Estimate population size using proportions
- L.13 Rate of change
- L.14 Constant rate of change
- M.1 Find the constant of proportionality from a table
- M.2 Write equations for proportional relationships from tables
- M.3 Identify proportional relationships by graphing
- M.5 Write equations for proportional relationships from graphs
- M.7 Interpret graphs of proportional relationships
- M.8 Write and solve equations for proportional relationships
- AA.15 Perimeter, area and volume: changes in scale

## Grade 8 skills

- I.1 Understanding ratios
- I.2 Identify equivalent ratios
- I.3 Write an equivalent ratio
- I.4 Equivalent ratios: word problems
- I.5 Unit rates
- I.6 Compare ratios: word problems
- I.7 Solve proportions: word problems
- I.8 Do the ratios form a proportion?
- I.9 Do the ratios form a proportion: word problems
- I.10 Solve proportions
- I.11 Estimate population size using proportions
- I.12 Scale drawings: word problems
- J.1 Find the constant of proportionality from a table
- J.2 Write equations for proportional relationships from tables
- J.3 Identify proportional relationships by graphing
- J.4 Find the constant of proportionality from a graph
- J.5 Write equations for proportional relationships from graphs
- J.6 Identify proportional relationships
- J.7 Graph proportional relationships
- J.8 Interpret graphs of proportional relationships
- J.9 Write and solve equations for proportional relationships
- U.11 Perimeter, area and volume: changes in scale
- Y.2 Rate of change
- Y.3 Constant rate of change

## Grade 9 skills

- C.1 Identify equivalent ratios
- C.2 Write an equivalent ratio
- C.3 Unit rates
- C.5 Solve proportions
- C.6 Solve proportions: word problems
- C.7 Scale drawings: word problems
- E.22 Perimeter, area and volume: changes in scale
- R.1 Identify proportional relationships
- R.2 Find the constant of variation
- R.3 Graph a proportional relationship
- R.4 Write direct variation equations
- R.5 Write and solve direct variation equations

## Grade 10 skills

- K.1 Identify proportional relationships
- K.2 Find the constant of variation
- K.3 Graph a proportional relationship
- K.4 Write direct variation equations
- K.5 Write and solve direct variation equations
- K.7 Write inverse variation equations
- K.8 Write and solve inverse variation equations
- W.5 Unit rates
- W.9 Scale drawings: word problems
- Y.10 Area and perimeter of similar figures