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Cornerstone Jan 1 - 7 25 questions
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Monday 11 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 404 + 448

    Answer: 404 + 448 = 852
  2. 2. Algebra

    Factorise: 4x² + 4x

    Answer: 4x(x + 1)
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 7cm

    Answer: 13.89cm
  4. 4. Ratio

    Calculate 10% of 118

    Answer: 11.8
  5. 5. Statistics

    Find the mean of: 9, 12, 5

    Answer: 8.6666666666667

Tuesday 12 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 44 + 62

    Answer: 44 + 62 = 106
  2. 2. Algebra

    Solve: 8x = 40

    Answer: x = 5
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Calculate 50% of 106

    Answer: 53
  5. 5. Statistics

    Find the mean of: 8, 12, 12, 10, 10

    Answer: 10.4

Wednesday 13 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄8 + 2⁄7

    Answer: 29⁄28
  2. 2. Algebra

    Find the next term: 6, 8, 10, 12, ...

    Answer: 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 6cm

    Answer: 6.71cm
  4. 4. Ratio

    Simplify the ratio 24:15

    Answer: 8:5
  5. 5. Statistics

    Calculate the range of: 47, 28, 43, 41, 86, 93

    Answer: 65

Thursday 14 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 954 + 188

    Answer: 954 + 188 = 1142
  2. 2. Algebra

    Expand: 2(x + 2)

    Answer: 2x + 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 12cm

    Answer: 16.97cm
  4. 4. Ratio

    Simplify: 6:10:8

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

    Find the mean of: 15, 13, 5

    Answer: 11

Friday 15 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 24 + 32

    Answer: 24 + 32 = 56
  2. 2. Algebra

    For y = x³ + 6, calculate y when x = 4

    Answer: y = 70
  3. 3. Geometry

    Opposite = 7cm, hypotenuse = 9.9cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Simplify: 8:10:4

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

    Calculate the mean of: 6, 23, 41, 12, 24, 26

    Answer: 22