# Grade 9 math

Here is a list of all of the math skills students learn in grade 9! These skills are organized into categories, and you can move your mouse over any skill name to view a sample question. To start practising, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

## Numbers

## Operations

- B.1Add, subtract, multiply and divide integers
- B.2Order of operations with integers
- B.3Evaluate variable expressions involving integers
- B.4Add and subtract rational numbers
- B.5Add and subtract rational numbers: word problems
- B.6Multiply and divide rational numbers
- B.7Multiply and divide rational numbers: word problems
- B.8Order of operations with rational numbers
- B.9Evaluate variable expressions involving rational numbers

## Ratios and proportions

## Percents

## Geometry

- E.1Parts of a circle
- E.2Perimeter
- E.3Area
- E.4Area of compound figures
- E.5Area between two shapes
- E.6Circles: calculate area, circumference, radius and diameter
- E.7Circles: word problems
- E.8Symmetry
- E.9Count lines of symmetry
- E.10Draw lines of symmetry
- E.11Interior angles of polygons
- E.12Transversal of parallel lines
- E.13Volume of prisms and pyramids
- E.14Volume of cones and cylinders
- E.15Volume of spheres
- E.16Nets of 3-dimensional figures
- E.17Surface area of prisms and pyramids
- E.18Surface area of cones and cylinders
- E.19Surface area of spheres
- E.20Similar figures: side lengths and angle measures
- E.21Similar triangles and indirect measurement
- E.22Area and perimeter of similar figures
- E.23Similar solids
- E.24Volume and surface area of similar solids
- E.25Perimeter, area and volume: changes in scale
- E.26Identify reflections, rotations and translations
- E.27Reflections, rotations and translations: find the coordinates
- E.28Reflections, rotations and translations: graph the image
- E.29Dilations and scale factors
- E.30Pythagorean theorem
- E.31Pythagorean theorem: word problems
- E.32Converse of the Pythagorean theorem: is it a right triangle?

## Coordinate graphs

## Exponents

- H.1Exponents with integer bases
- H.2Exponents with decimal and fractional bases
- H.3Negative exponents
- H.4Multiplication with exponents
- H.5Division with exponents
- H.6Multiplication and division with exponents
- H.7Power rule
- H.8Simplify expressions involving exponents
- H.9Identify equivalent expressions involving exponents

## Scientific notation

## Problem solving

## Number sequences

## Variable expressions and equations

## Solve equations

- M.1Model and solve equations using algebra tiles
- M.2Write and solve equations that represent diagrams
- M.3Solve one-step linear equations
- M.4Solve two-step linear equations
- M.5Solve advanced linear equations
- M.6Solve equations with variables on both sides
- M.7Identities and equations with no solutions
- M.8Solve linear equations: word problems
- M.9Solve linear equations: mixed review

## Single-variable inequalities

- N.1Graph inequalities
- N.2Write inequalities from graphs
- N.3Identify solutions to inequalities
- N.4Solve one-step linear inequalities: addition and subtraction
- N.5Solve one-step linear inequalities: multiplication and division
- N.6Solve one-step linear inequalities
- N.7Graph solutions to one-step linear inequalities
- N.8Solve two-step linear inequalities
- N.9Graph solutions to two-step linear inequalities
- N.10Solve advanced linear inequalities
- N.11Graph solutions to advanced linear inequalities

## Relations and functions

- P.1Relations: convert between tables, graphs, mappings and lists of points
- P.2Identify independent and dependent variables
- P.3Identify functions
- P.4Identify functions: vertical line test
- P.5Complete a function table
- P.6Evaluate function rules I
- P.7Evaluate function rules II
- P.8Graph a function
- P.9Write a function rule: word problems
- P.10Find points on a function graph
- P.11Write a rule for a function table

## Direct variation

## Linear functions

- R.1Identify linear functions
- R.2Find the slope of a graph
- R.3Find the slope from two points
- R.4Find a missing coordinate using slope
- R.5Slope-intercept form: find the slope and y-intercept
- R.6Slope-intercept form: graph an equation
- R.7Slope-intercept form: write an equation from a graph
- R.8Slope-intercept form: write an equation
- R.9Linear equations: solve for y
- R.10Linear function word problems
- R.11Write equations in standard form
- R.12Standard form: find x- and y-intercepts
- R.13Standard form: graph an equation
- R.14Equations of horizontal and vertical lines
- R.15Graph a horizontal or vertical line
- R.16Point-slope form: graph an equation
- R.17Point-slope form: write an equation from a graph
- R.18Point-slope form: write an equation
- R.19Slopes of parallel and perpendicular lines
- R.20Write an equation for a parallel or perpendicular line