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

Monday 17 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √98

    Answer: 7√2
  2. 2. Algebra

    Complete the square: x² + 6x

    Answer: (x + 3)² - 9
  3. 3. Geometry

    Find area of triangle: a = 14cm, b = 18cm, angle = 65°

    Answer: 114.2cm²
  4. 4. Ratio

    a:b is 2:3 and b:c is 4:3. Find a:b:c.

    Answer: 8:12:9
  5. 5. Statistics

    Find the mean, median and range of: 68, 49, 30, 52, 53, 14, 11

    Answer: Mean = 39.6, Median = 49, Range = 57

Tuesday 18 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √75

    Answer: 5√3
  2. 2. Algebra

    Complete the square: x² + 2.4x

    Answer: (x + 1.2)² - 1.44
  3. 3. Geometry

    Find area of triangle: a = 26cm, b = 29cm, angle = 77°

    Answer: 367.3cm²
  4. 4. Ratio

    a:b is 4:3 and b:c is 3:5. Find a:b:c.

    Answer: 4:3:5
  5. 5. Statistics

    Find the mean, median and range of: 22, 11, 35, 96, 28, 84, 12

    Answer: Mean = 41.1, Median = 28, Range = 85

Wednesday 19 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √162

    Answer: 9√2
  2. 2. Algebra

    Complete the square: x² + 5.4x

    Answer: (x + 2.7)² - 7.29
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 13cm, angle = 47°

    Answer: 137.9cm²
  4. 4. Ratio

    a:b is 3:4 and b:c is 1:2. Find a:b:c.

    Answer: 9:12:24
  5. 5. Statistics

    Find the mean, median and range of: 17, 48, 16, 47, 55, 64, 17, 64, 72

    Answer: Mean = 44.4, Median = 48, Range = 56

Thursday 20 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √320

    Answer: 8√5
  2. 2. Algebra

    Complete the square: x² + 3.8x

    Answer: (x + 1.9)² - 3.61
  3. 3. Geometry

    Find area of triangle: a = 30cm, b = 30cm, angle = 70°

    Answer: 422.9cm²
  4. 4. Ratio

    a:b is 2:1 and b:c is 3:4. Find a:b:c.

    Answer: 12:6:8
  5. 5. Statistics

    Find the mean, median and range of: 70, 67, 13, 88, 10, 100, 60, 69, 55

    Answer: Mean = 59.1, Median = 67, Range = 90

Friday 21 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √192

    Answer: 8√3
  2. 2. Algebra

    Complete the square: x² + 2.8x

    Answer: (x + 1.4)² - 1.96
  3. 3. Geometry

    Find area of triangle: a = 24cm, b = 17cm, angle = 61°

    Answer: 178.4cm²
  4. 4. Ratio

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

    Answer: 4:2:4
  5. 5. Statistics

    Find the mean, median and range of: 31, 78, 25, 31, 35, 58, 70, 92, 95

    Answer: Mean = 57.2, Median = 58, Range = 70