Year 9 maths

IXL offers hundreds of year 9 maths skills to explore and learn! Not sure where to start? Go to your personalised Recommendations wall and choose a skill that looks interesting!

IXL offers hundreds of year 9 maths skills to explore and learn! Not sure where to start? Go to your personalised Recommendations wall and choose a skill that looks interesting!

Numbers

A.1
Classify numbers
A.2
Compare and order rational numbers
A.3
Number lines
A.4
Convert between decimals and fractions
A.5
Square roots
A.6
Cube roots

Operations

Ratios, rates and proportions

C.1
Identify equivalent ratios
C.2
Write an equivalent ratio
C.3
Unit rates
C.4
Unit prices
C.5
Do the ratios form a proportion?
C.6
Do the ratios form a proportion: word problems
C.7
Solve proportions
C.8
Solve proportions: word problems
C.9
Estimate population size using proportions
C.10
Scale drawings: word problems

Percents

D.1
Convert between percents, fractions and decimals
D.2
Solve percent equations
D.3
Percent word problems
D.4
Percent of change
D.5
Percent of change: word problems
D.6
Simple interest
D.7
Percent of a number: GST, discount and more
D.8
Find the percent: discount and mark-up
D.9
Multi-step problems with percents

Measurement

Geometric measurement

F.1
Perimeter
F.2
Area
F.3
Circles, semicircles and quarter circles
F.4
Area of compound figures with triangles
F.5
Area of compound figures with triangles, semicircles and quarter circles
F.6
Area between two shapes
F.7
Interior angles of polygons
F.8
Transversal of parallel lines
F.9
Volume of cylinders
F.10
Volume of prisms
F.11
Volume of cylinders and prisms
F.12
Surface area of cylinders
F.13
Surface area of prisms
F.14
Surface area of cylinders and prisms

Congruence and similarity

G.1
Congruent figures: side lengths and angle measures
G.2
Congruent triangles: SSS, SAS and ASA
G.3
Dilations: graph the image
G.4
Dilations: find the coordinates
G.5
Dilations: scale factor and classification
G.6
Identify similar figures
G.7
Similarity ratios
G.8
Similarity statements
G.9
Similar figures: side lengths and angle measures
G.10
Similar triangles and indirect measurement
G.11
Perimeters of similar figures
G.12
Similarity rules for triangles
G.13
Areas of similar figures
G.14
Similar solids
G.15
Volume and surface area of similar solids
G.16
Perimeter, area and volume: changes in scale

Pythagoras' theorem

Trigonometry

Coordinate plane

Properties

Variable expressions and equations

Solve equations

Data and graphs

N.1
Interpret bar graphs and line graphs
N.2
Create bar graphs and line graphs
N.3
Interpret histograms
N.4
Create histograms
N.5
Interpret circle graphs
N.6
Interpret stem-and-leaf plots
N.7
Create stem-and-leaf plots

Relations and functions

Proportional relationships

Linear equations

Exponents

Scientific notation

Monomials

Polynomials and factorising

U.1
Polynomial vocabulary
U.2
Model polynomials with algebra tiles
U.3
Add and subtract polynomials using algebra tiles
U.4
Add and subtract polynomials
U.5
Add polynomials to find perimeter
U.6
Multiply a polynomial by a monomial
U.7
Multiply two polynomials using algebra tiles
U.8
Multiply two binomials
U.9
Multiply two binomials: special cases
U.10
Multiply polynomials
U.11
HCF of monomials
U.12
Factorise out a monomial

Quadratic equations

Circles in the coordinate plane

Problem solving

Probability

Statistics