Change pack
Capstone Dec 14 - 20 25 questions
PDF (questions) PDF (answers)

Monday 14 December 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √242

    Answer: 11√2
  2. 2. Algebra

    Complete the square: x² + 5.6x

    Answer: (x + 2.8)² - 7.84
  3. 3. Geometry

    Find area of triangle: a = 27cm, b = 16cm, angle = 52°

    Answer: 170.2cm²
  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: 84, 36, 47, 49, 79, 96, 27, 88

    Answer: Mean = 63.3, Median = 79, Range = 69

Tuesday 15 December 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √147

    Answer: 7√3
  2. 2. Algebra

    Complete the square: x² + 3.2x

    Answer: (x + 1.6)² - 2.56
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 27cm, angle = 67°

    Answer: 310.7cm²
  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: 51, 76, 75, 86, 32, 40, 32, 70, 15

    Answer: Mean = 53, Median = 51, Range = 71

Wednesday 16 December 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √108

    Answer: 6√3
  2. 2. Algebra

    Complete the square: x² + 4.4x

    Answer: (x + 2.2)² - 4.84
  3. 3. Geometry

    Find area of triangle: a = 21cm, b = 29cm, angle = 56°

    Answer: 252.4cm²
  4. 4. Ratio

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

    Answer: 2:4:6
  5. 5. Statistics

    Find the mean, median and range of: 98, 90, 47, 54, 91, 50, 36, 44

    Answer: Mean = 63.8, Median = 54, Range = 62

Thursday 17 December 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √192

    Answer: 8√3
  2. 2. Algebra

    Complete the square: x² + 2x

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

    Find area of triangle: a = 21cm, b = 23cm, angle = 77°

    Answer: 235.3cm²
  4. 4. Ratio

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

    Answer: 4:3:6
  5. 5. Statistics

    Find the mean, median and range of: 70, 100, 93, 84, 83, 38, 30

    Answer: Mean = 71.1, Median = 83, Range = 70

Friday 18 December 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √288

    Answer: 12√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 = 29cm, b = 30cm, angle = 45°

    Answer: 307.6cm²
  4. 4. Ratio

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

    Answer: 9:12:20
  5. 5. Statistics

    Find the mean, median and range of: 59, 17, 45, 18, 61, 23, 72, 64, 59

    Answer: Mean = 46.4, Median = 59, Range = 55