Grade 8 math
Here is a list of all of the math skills students learn in grade 8! 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!
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.4Add and subtract three or more integers
- C.5Add and subtract integers: word problems
- C.6Integer multiplication and division rules
- C.7Multiply and divide integers
- C.8Evaluate expressions involving integers
Operations with fractions
- D.1Write fractions in lowest terms
- D.2Least common denominator
- D.3Add and subtract fractions with like denominators
- D.4Add fractions with unlike denominators
- D.5Subtract fractions with unlike denominators
- D.6Add and subtract mixed numbers
- D.7Inequalities with addition and subtraction of fractions and mixed numbers
- D.8Reciprocals and multiplicative inverses
- D.9Multiply fractions and whole numbers
- D.10Multiply two fractions using models
- D.11Multiply fractions
- D.12Divide whole numbers by unit fractions using models
- D.13Divide whole numbers and unit fractions
- D.14Divide fractions
Rational numbers
Operations with rational numbers
- F.1Add and subtract rational numbers
- F.2Add and subtract rational numbers: word problems
- F.3Multiply and divide rational numbers
- F.4Multiply and divide rational numbers: word problems
- F.5Evaluate expressions involving rational numbers
- F.6Apply addition and subtraction rules
- F.7Apply multiplication and division rules
- F.8Apply addition, subtraction, multiplication and division rules
Exponents and roots
- G.1Understanding exponents
- G.2Evaluate exponents
- G.3Solve equations with variable exponents
- G.4Exponents with negative bases
- G.5Exponents with decimal and fractional bases
- G.6Square roots of perfect squares
- G.7Estimate square roots
- G.8Relationship between squares and square roots
- G.9Solve equations involving squares and square roots
Scientific notation
Ratios, rates and proportions
- I.1Understanding ratios
- I.2Equivalent ratios
- I.3Equivalent ratios: word problems
- I.4Unit rates
- I.5Compare ratios: word problems
- I.6Do the ratios form a proportion?
- I.7Do the ratios form a proportion: word problems
- I.8Solve proportions
- I.9Solve proportions: word problems
- I.10Estimate population size using proportions
- I.11Scale drawings: word problems
Proportional relationships
- J.1Find the constant of proportionality from a table
- J.2Identify graphs of proportional relationships
- J.3Find the constant of proportionality from a graph
- J.4Write equations for proportional relationships
- J.5Graph proportional relationships
- J.6Identify proportional relationships
- J.7Find the constant of proportionality: word problems
- J.8Solve problems involving proportional relationships
Percents
- K.1Convert between percents, fractions and decimals
- K.2Compare percents to fractions and decimals
- K.3Find what percent one number is of another
- K.4Find what percent one number is of another: word problems
- K.5Estimate percents of numbers
- K.6Percents of numbers and money amounts
- K.7Percents of numbers: word problems
- K.8Compare percents of numbers
- K.9Solve percent equations
- K.10Percent of change
- K.11Percent of change: word problems
Consumer math
Units of measurement
Problem solving
Coordinate plane
Two-dimensional figures
- P.1Identify and classify polygons
- P.2Classify triangles
- P.3Classify quadrilaterals
- P.4Find missing angles in triangles and quadrilaterals
- P.5Interior angles of polygons
- P.6Identify complementary, supplementary, vertical, adjacent and congruent angles
- P.7Find measures of complementary, supplementary, vertical and adjacent angles
- P.8Transversal of parallel lines
- P.9Find lengths and measures of bisected lines and angles
- P.10Parts of a circle
Transformations and congruence
- Q.1Symmetry
- Q.2Identify reflections, rotations and translations
- Q.3Translations: graph the image
- Q.4Translations: find the coordinates
- Q.5Reflections: graph the image
- Q.6Reflections: find the coordinates
- Q.7Rotations: graph the image
- Q.8Rotations: find the coordinates
- Q.9Side lengths and angle measures of congruent figures
- Q.10Congruence statements and corresponding parts
Transformations and similarity
Three-dimensional figures
Geometric measurement
- U.1Perimeter
- U.2Area
- U.3Area between two shapes
- U.4Area and perimeter: word problems
- U.5Circles, semicircles and quarter circles
- U.6Circles: word problems
- U.7Volume
- U.8Surface area of prisms and cylinders
- U.9Surface area of pyramids
- U.10Volume and surface area of similar solids
- U.11Perimeter, area and volume: changes in scale
Number sequences
Expressions and properties
- W.1Write variable expressions
- W.2Write variable expressions from diagrams
- W.3Write variable expressions: word problems
- W.4Evaluate one-variable expressions
- W.5Evaluate multi-variable expressions
- W.6Evaluate absolute value expressions
- W.7Evaluate radical expressions
- W.8Evaluate rational expressions
- W.9Identify terms and coefficients
- W.10Properties of addition and multiplication
- W.11Distributive property
- W.12Simplify variable expressions using properties
- W.13Add and subtract like terms
- W.14Add, subtract and multiply linear expressions
- W.15Factors of linear expressions
- W.16Identify equivalent linear expressions
One-variable equations
- X.1Which x satisfies an equation?
- X.2Write an equation from words
- X.3Model and solve equations using algebra tiles
- X.4Write and solve equations that represent diagrams
- X.5Properties of equality
- X.6Solve one-step equations
- X.7Solve two-step equations
- X.8Solve equations involving like terms
- X.9Solve equations: word problems
Linear functions
- Y.1Does (x, y) satisfy the linear function?
- Y.2Rate of change
- Y.3Constant rate of change
- Y.4Complete a table for a linear function
- Y.5Complete a table and graph a linear function
- Y.6Graph a line from an equation
- Y.7Interpret the graph of a linear function: word problems
- Y.8Write a linear function from a table
- Y.9Write linear functions: word problems
Data and graphs
- Z.1Interpret tables
- Z.2Interpret bar graphs
- Z.3Create bar graphs
- Z.4Interpret line graphs
- Z.5Create line graphs
- Z.6Interpret line plots
- Z.7Create line plots
- Z.8Interpret stem-and-leaf plots
- Z.9Interpret histograms
- Z.10Create histograms
- Z.11Create frequency charts
- Z.12Interpret box-and-whisker plots
- Z.13Scatter plots
- Z.14Interpret circle graphs
- Z.15Circle graphs and central angles
- Z.16Choose the best type of graph