# Year 8 maths

Here is a list of all of the maths skills students learn in year 8! These skills are organised 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!

## Number theory

## Integers

## Operations with integers

- C.1Integer addition and subtraction rules
- C.2Add and subtract integers using counters
- C.3Add and subtract integers
- C.4Complete addition and subtraction sentences with integers
- C.5Add and subtract integers: word problems
- C.6Integer multiplication and division rules
- C.7Multiply and divide integers
- C.8Complete multiplication and division sentences with integers
- C.9Evaluate numerical expressions involving integers

## Decimals

## Operations with decimals

- E.1Add and subtract decimals
- E.2Add and subtract decimals: word problems
- E.3Multiply decimals
- E.4Multiply decimals and whole numbers: word problems
- E.5Divide decimals
- E.6Divide decimals by whole numbers: word problems
- E.7Estimate sums, differences and products of decimals
- E.8Add, subtract, multiply and divide decimals: word problems
- E.9Multi-step inequalities with decimals
- E.10Maps with decimal distances
- E.11Evaluate numerical expressions involving decimals

## Fractions and mixed numbers

- F.1Equivalent fractions
- F.2Write fractions in lowest terms
- F.3Understanding fractions: word problems
- F.4Least common denominator
- F.5Compare and order fractions
- F.6Compare fractions: word problems
- F.7Convert between mixed numbers and improper fractions
- F.8Compare mixed numbers and improper fractions
- F.9Round mixed numbers

## Operations with fractions

- G.1Add and subtract fractions with like denominators
- G.2Add and subtract fractions with like denominators: word problems
- G.3Add fractions with unlike denominators
- G.4Subtract fractions with unlike denominators
- G.5Add and subtract fractions with unlike denominators: word problems
- G.6Add and subtract mixed numbers
- G.7Add and subtract mixed numbers: word problems
- G.8Inequalities with addition and subtraction of fractions and mixed numbers
- G.9Estimate sums and differences of mixed numbers
- G.10Multiply fractions and whole numbers
- G.11Multiply fractions and whole numbers: word problems
- G.12Multiply two fractions using models
- G.13Multiply fractions
- G.14Multiply fractions: word problems
- G.15Multiply three or more fractions and whole numbers
- G.16Divide whole numbers by unit fractions using models
- G.17Reciprocals
- G.18Divide whole numbers and unit fractions
- G.19Divide fractions
- G.20Divide fractions: word problems
- G.21Estimate products and quotients of fractions and mixed numbers
- G.22Add, subtract, multiply and divide fractions and mixed numbers: word problems
- G.23Evaluate numerical expressions involving fractions

## Rational numbers

- H.1Identify rational numbers
- H.2Convert between decimals and fractions or mixed numbers
- H.3Absolute value of rational numbers
- H.4Compare rational numbers
- H.5Put rational numbers in order
- H.6Add and subtract rational numbers
- H.7Apply addition and subtraction rules
- H.8Multiply and divide rational numbers
- H.9Apply multiplication and division rules

## Exponents and square roots

## Ratios, rates and proportions

- J.1Understanding ratios
- J.2Identify equivalent ratios
- J.3Write an equivalent ratio
- J.4Equivalent ratios: word problems
- J.5Unit rates
- J.6Compare ratios: word problems
- J.7Scale drawings: word problems
- J.8Do the ratios form a proportion?
- J.9Do the ratios form a proportion: word problems
- J.10Solve proportions
- J.11Solve proportions: word problems
- J.12Estimate population size using proportions
- J.13Rate of change
- J.14Constant rate of change

## Proportional relationships

- K.1Find the constant of proportionality from a table
- K.2Write equations for proportional relationships from tables
- K.3Identify proportional relationships by graphing
- K.4Find the constant of proportionality from a graph
- K.5Write equations for proportional relationships from graphs
- K.6Identify proportional relationships
- K.7Interpret graphs of proportional relationships
- K.8Write and solve equations for proportional relationships

## Percents

- L.1What percentage is illustrated?
- L.2Convert between percents, fractions and decimals
- L.3Compare percents to fractions and decimals
- L.4Estimate percents of numbers
- L.5Percents of numbers and money amounts
- L.6Percents of numbers: word problems
- L.7Solve percent equations
- L.8Solve percent equations: word problems

## Consumer maths

- M.1Which is the better coupon?
- M.2Add, subtract, multiply and divide money amounts: word problems
- M.3Price lists
- M.4Unit prices
- M.5Unit prices: find the total price
- M.6Percent of a number: GST, discount and more
- M.7Find the percent: discount and mark-up
- M.8Sale prices: find the original price
- M.9Multi-step problems with percents
- M.10Simple interest
- M.11Compound interest

## Problem solving and estimation

## Units of measurement

## Coordinate plane

## Number sequences

## Expressions and properties

- R.1Write variable expressions
- R.2Write variable expressions: word problems
- R.3Evaluate linear expressions
- R.4Evaluate multi-variable expressions
- R.5Evaluate absolute value expressions
- R.6Evaluate nonlinear expressions
- R.7Identify terms and coefficients
- R.8Properties of addition and multiplication
- R.9Multiply using the distributive property
- R.10Solve equations using properties
- R.11Write equivalent expressions using properties
- R.12Add and subtract like terms
- R.13Add, subtract and multiply linear expressions
- R.14Factors of linear expressions
- R.15Identify equivalent linear expressions

## One-variable equations

## Two-variable equations

- T.1Does (x, y) satisfy the equation?
- T.2Identify independent and dependent variables
- T.3Solve word problems involving two-variable equations
- T.4Complete a table for a two-variable relationship
- T.5Write a two-variable equation
- T.6Identify the graph of an equation
- T.7Graph a two-variable equation
- T.8Interpret a graph: word problems
- T.9Write an equation from a graph using a table

## Two-dimensional figures

- U.1Identify and classify polygons
- U.2Name, measure and classify angles
- U.3Classify triangles
- U.4Classify quadrilaterals
- U.5Graph triangles and quadrilaterals
- U.6Find missing angles in triangles and quadrilaterals
- U.7Interior angles of polygons
- U.8Lines, intervals and rays
- U.9Parallel, perpendicular and intersecting lines
- U.10Identify complementary, supplementary, vertical, adjacent and congruent angles
- U.11Find measures of complementary, supplementary, vertical and adjacent angles
- U.12Transversal of parallel lines
- U.13Find lengths and measures of bisected lines and angles
- U.14Parts of a circle

## Transformations and congruence

- V.1Symmetry
- V.2Identify reflections, rotations and translations
- V.3Translations: graph the image
- V.4Translations: find the coordinates
- V.5Reflections: graph the image
- V.6Reflections: find the coordinates
- V.7Rotations: graph the image
- V.8Rotations: find the coordinates
- V.9Similar and congruent figures
- V.10Side lengths and angle measures of congruent figures
- V.11Congruence statements and corresponding parts
- V.12Side lengths and angle measures of similar figures
- V.13Similar figures and indirect measurement

## Three-dimensional figures

## Geometric measurement

## Data and graphs

- Y.1Interpret tables
- Y.2Interpret line plots
- Y.3Create line plots
- Y.4Interpret stem-and-leaf plots
- Y.5Interpret bar graphs
- Y.6Create bar graphs
- Y.7Interpret histograms
- Y.8Create histograms
- Y.9Create frequency charts
- Y.10Interpret circle graphs
- Y.11Circle graphs and central angles
- Y.12Interpret line graphs
- Y.13Create line graphs
- Y.14Interpret box-and-whisker plots
- Y.15Scatter plots
- Y.16Choose the best type of graph