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Cornerstone May 30 - Jun 5 25 questions
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Monday 30 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 2x - 5 = 23

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Share 100 in the ratio 2:3

    Answer: 40 and 60
  5. 5. Statistics

    Find the mean of: 9, 16, 2, 5, 6

    Answer: 7.6

Tuesday 31 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄11 + 1⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 6x + 14 = 86

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 13cm

    Answer: 17.69cm
  4. 4. Ratio

    Share 72 in the ratio 2:1

    Answer: 48 and 24
  5. 5. Statistics

    Calculate the mean of: 38, 31, 12, 8, 14, 6

    Answer: 18.2

Wednesday 1 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x - 5 = 55

    Answer: x = 15
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics

    Find the mean of: 3, 16, 9

    Answer: 9.3333333333333

Thursday 2 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 1⁄3

    Answer: 8⁄15
  2. 2. Algebra

    Solve: 6x - 12 = 42

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 10cm

    Answer: 14.14cm
  4. 4. Ratio

    Share 50 in the ratio 2:3

    Answer: 20 and 30
  5. 5. Statistics

    Find the mean of: 3, 20, 12, 9

    Answer: 11

Friday 3 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 3⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x + 3 = 30

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 50 in the ratio 3:2

    Answer: 30 and 20
  5. 5. Statistics

    Calculate the mean of: 30, 18, 34, 47, 13, 20, 43

    Answer: 29.3