Skip to content
eurekami
Menu

Year 10 in England

9th grade math

Every 9th grade math skill on Eurekami: 72 skills in 6 areas, each with a worked example, free practice that checks answers as you go, and printable worksheets with answer keys.

Mixed 9th grade review

Ten questions from across the year, a quick way to see what is secure and what needs another look.

Decimals and percentages

Compound interest and depreciation

CCSS HSF.LE.A.1.CCCSS HSA.SSE.B.3.CEngland: GCSE Foundation RatioEngland: GCSE Higher Ratio

Example

$4800 is saved at 4% compound interest per year. How much is in the account after 3 years? Round to 2 decimal places (type the number only).

  1. 4800 × 1.04³ = 5399.3472
  2. ≈ 5399.35

Answer: 5399.35

Ratio and proportion

Ratio problems with algebra

CCSS HSA.CED.A.1England: GCSE Higher Ratio

Example

The ratio x : y is 3 : 4, and y is 2 more than x. Find x.

  1. 4x = 3(x + 2)
  2. 4x = 3x + 6
  3. x = 6
  4. x = 6

Answer: x = 6

Keep exploring

Math, English and science that click.

9th grade Math: Skills, Practice, Worksheets | Eurekami