Year 9 in England
8th grade math
Every 8th grade math skill on Eurekami: 89 skills in 7 areas, each with a worked example, free practice that checks answers as you go, and printable worksheets with answer keys.
Number sense
- Scientific notation (standard form)
- Square roots and cube roots
- Rational and irrational numbers
- Write scientific notation as an ordinary number
- Write numbers in scientific notation (standard form)
- Compare and order numbers in scientific notation
- Multiply and divide in scientific notation
- Compare real quantities in scientific notation
- + 7 more
Decimals and percentages
Ratio and proportion
Measurement
Geometry
Statistics and probability
Algebra
Mixed 8th grade review
Ten questions from across the year, a quick way to see what is secure and what needs another look.
Decimals and percentages
Reverse percentages
CCSS 7.RP.A.3England: GCSE Foundation RatioEngland: GCSE Higher Ratio
Example
After a 20% discount, a jacket costs $432. What was the original price? (Type the number only.)
- 80% → 432
- 1% → 5.4
- 100% → 540
Answer: 540
Builds on: Percentage increase and decrease
Ratio and proportion
Direct and inverse proportion
CCSS 7.RP.A.2CCSS HSA.CED.A.2England: GCSE Foundation RatioEngland: GCSE Higher Ratio
Example
3 painters take 6 days to paint a school. How many days would 6 painters take, working at the same rate?
- 3 × 6 = 18
- 18 ÷ 6 = 3
Answer: 3
Builds on: Proportional relationships
Speed, density and other rates
CCSS 7.RP.A.1CCSS HSN.Q.A.1England: KS3 RatioEngland: GCSE Foundation Ratio
Example
A train travels at 50 km/h for 1.5 hours. How far does it travel, in km?
- 50 × 1.5 = 75 km
Answer: 75
Builds on: Unit rates, Divide decimals
Measurement
Convert area and volume units
CCSS HSN.Q.A.1England: GCSE Foundation GeometryEngland: GCSE Higher Geometry
Example
How many cm³ are in 8 m³?
- 1 m³ = 1 000 000 cm³
- 8 × 1 000 000 = 8 000 000 cm³
Answer: 8000000
Keep exploring
8th grade topic pages
More for 8th grade
Hands-on math tools
- Virtual fraction bars and fraction circles
- Interactive number line
- Virtual base ten blocks
- Multiplication arrays
- Interactive teaching clock
- Virtual money for counting practice
- Interactive coordinate plane
- Algebra balance scale
- Adding fractions with a model
- Virtual algebra tiles
- Alphabetical order game
- Virtual protractor and angle maker
- Area and perimeter builder
- Bar graph maker for kids
- Math by topicFractions, times tables, long division and more
- English and grammarNouns, verbs, commas, spelling and more
- Reading passagesShort stories with read-aloud and questions
- Science by gradePlants, forces, matter, space and more
- Printable worksheetsPrint, or do them on a tablet with a finger or pen
- Free math games3D games where every move is a math question
- Manipulatives and simulationsMath tools plus science sims: cells, atoms, forces, planets
- Fraction calculatorEvery step shown, from mixed numbers to simplest form
- Math 5-a-dayFive fresh warm-up questions every day
- Guides for parentsHow to help with fractions, tables, tests and more
Math, English and science that click.