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Cornerstone Jul 4 - 10 25 questions
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Monday 4 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 1⁄8

    Answer: 1⁄4
  2. 2. Algebra

    Solve: 8x - 12 = 36

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Share 24 in the ratio 1:2

    Answer: 8 and 16
  5. 5. Statistics

    Find the mean of: 10, 13, 2

    Answer: 8.3333333333333

Tuesday 5 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 1⁄3

    Answer: 23⁄24
  2. 2. Algebra

    Solve: 4x + 7 = 19

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 9cm

    Answer: 9.85cm
  4. 4. Ratio

    Share 24 in the ratio 1:3

    Answer: 6 and 18
  5. 5. Statistics

    Calculate the mean of: 35, 49, 29, 35, 20, 37

    Answer: 34.2

Wednesday 6 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 6x + 8 = 26

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 4cm

    Answer: 10.77cm
  4. 4. Ratio

    Share 45 in the ratio 1:2

    Answer: 15 and 30
  5. 5. Statistics

    Calculate the mean of: 12, 9, 36, 28, 13, 19, 25

    Answer: 20.3

Thursday 7 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 4⁄5

    Answer: 17⁄15
  2. 2. Algebra

    Solve: 6x - 17 = 43

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 11cm

    Answer: 13.6cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Find the mean of: 11, 12, 9, 7, 2

    Answer: 8.2

Friday 8 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 4⁄6

    Answer: 4⁄3
  2. 2. Algebra

    Solve: 6x - 20 = 22

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 6cm

    Answer: 12.53cm
  4. 4. Ratio

    Share 102 in the ratio 1:2

    Answer: 34 and 68
  5. 5. Statistics

    Find the mean of: 18, 19, 13, 6

    Answer: 14