Change pack
Capstone Nov 17 - 23 25 questions
PDF (questions) PDF (answers)

Monday 17 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √125

    Answer: 5√5
  2. 2. Algebra

    Complete the square: x² + 2x

    Answer: (x + 1)² - 1
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 17cm, angle = 47°

    Answer: 180.3cm²
  4. 4. Ratio

    a:b is 2:1 and b:c is 2:3. Find a:b:c.

    Answer: 8:4:6
  5. 5. Statistics

    Find the mean, median and range of: 40, 49, 27, 79, 43, 12, 95, 29

    Answer: Mean = 46.8, Median = 43, Range = 83

Tuesday 18 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √98

    Answer: 7√2
  2. 2. Algebra

    Complete the square: x² + 5.2x

    Answer: (x + 2.6)² - 6.76
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 17cm, angle = 63°

    Answer: 98.5cm²
  4. 4. Ratio

    a:b is 2:3 and b:c is 1:2. Find a:b:c.

    Answer: 4:6:12
  5. 5. Statistics

    Find the mean, median and range of: 95, 48, 48, 58, 68, 52, 48, 96

    Answer: Mean = 64.1, Median = 58, Range = 48

Wednesday 19 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √200

    Answer: 10√2
  2. 2. Algebra

    Complete the square: x² + 4.6x

    Answer: (x + 2.3)² - 5.29
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 26cm, angle = 51°

    Answer: 252.6cm²
  4. 4. Ratio

    a:b is 3:2 and b:c is 2:5. Find a:b:c.

    Answer: 3:2:5
  5. 5. Statistics

    Find the mean, median and range of: 26, 30, 88, 91, 64, 73, 11

    Answer: Mean = 54.7, Median = 64, Range = 80

Thursday 20 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √288

    Answer: 12√2
  2. 2. Algebra

    Complete the square: x² + 3x

    Answer: (x + 1.5)² - 2.25
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 15cm, angle = 78°

    Answer: 183.4cm²
  4. 4. Ratio

    a:b is 4:3 and b:c is 4:3. Find a:b:c.

    Answer: 16:12:9
  5. 5. Statistics

    Find the mean, median and range of: 92, 46, 61, 66, 22, 72, 10, 21

    Answer: Mean = 48.8, Median = 61, Range = 82

Friday 21 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √320

    Answer: 8√5
  2. 2. Algebra

    Complete the square: x² + 5x

    Answer: (x + 2.5)² - 6.25
  3. 3. Geometry

    Find area of triangle: a = 28cm, b = 18cm, angle = 44°

    Answer: 175.cm²
  4. 4. Ratio

    a:b is 2:1 and b:c is 4:5. Find a:b:c.

    Answer: 8:4:5
  5. 5. Statistics

    Find the mean, median and range of: 17, 31, 37, 16, 39, 44, 24, 75

    Answer: Mean = 35.4, Median = 37, Range = 59