Change pack
Capstone Mar 16 - 22 25 questions
PDF (questions) PDF (answers)

Monday 16 March 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √288

    Answer: 12√2
  2. 2. Algebra

    Complete the square: x² + 2.4x

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

    Find area of triangle: a = 17cm, b = 17cm, angle = 52°

    Answer: 113.9cm²
  4. 4. Ratio

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

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

    Find the mean, median and range of: 52, 77, 63, 96, 28, 71, 10, 91, 49

    Answer: Mean = 59.7, Median = 63, Range = 86

Tuesday 17 March 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √147

    Answer: 7√3
  2. 2. Algebra

    Complete the square: x² + 3.8x

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

    Find area of triangle: a = 27cm, b = 15cm, angle = 75°

    Answer: 195.6cm²
  4. 4. Ratio

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

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

    Find the mean, median and range of: 62, 79, 76, 17, 29, 41, 78

    Answer: Mean = 54.6, Median = 62, Range = 62

Wednesday 18 March 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √242

    Answer: 11√2
  2. 2. Algebra

    Complete the square: x² + 2x

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

    Find area of triangle: a = 25cm, b = 25cm, angle = 50°

    Answer: 239.4cm²
  4. 4. Ratio

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

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

    Find the mean, median and range of: 78, 100, 59, 60, 29, 62, 27, 10

    Answer: Mean = 53.1, Median = 60, Range = 90

Thursday 19 March 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √75

    Answer: 5√3
  2. 2. Algebra

    Complete the square: x² + 2.6x

    Answer: (x + 1.3)² - 1.69
  3. 3. Geometry

    Find area of triangle: a = 19cm, b = 22cm, angle = 40°

    Answer: 134.3cm²
  4. 4. Ratio

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

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

    Find the mean, median and range of: 50, 23, 86, 90, 96, 56, 94, 92

    Answer: Mean = 73.4, Median = 90, Range = 73

Friday 20 March 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √200

    Answer: 10√2
  2. 2. Algebra

    Complete the square: x² + 3.2x

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

    Find area of triangle: a = 23cm, b = 18cm, angle = 59°

    Answer: 177.4cm²
  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: 41, 74, 98, 69, 55, 51, 76

    Answer: Mean = 66.3, Median = 69, Range = 57