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Cornerstone Jun 7 - 13 25 questions
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Monday 7 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 2⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x + 3 = 59

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 32 in the ratio 1:3

    Answer: 8 and 24
  5. 5. Statistics

    Calculate the mean of: 46, 7, 9, 5, 37, 39, 22

    Answer: 23.6

Tuesday 8 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 4x + 11 = 27

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics

    Calculate the mean of: 21, 24, 28, 27, 41, 15, 38

    Answer: 27.7

Wednesday 9 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄8 + 3⁄6

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 2x - 18 = -6

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 15cm

    Answer: 15.81cm
  4. 4. Ratio

    Share 65 in the ratio 1:4

    Answer: 13 and 52
  5. 5. Statistics

    Find the mean of: 13, 19, 11, 17, 9

    Answer: 13.8

Thursday 10 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 5⁄6

    Answer: 19⁄12
  2. 2. Algebra

    Solve: 3x - 8 = 7

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Share 90 in the ratio 3:2

    Answer: 54 and 36
  5. 5. Statistics

    Find the mean of: 10, 7, 3, 10

    Answer: 7.5

Friday 11 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 5⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 3x + 3 = 27

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 4cm

    Answer: 6.4cm
  4. 4. Ratio

    Share 35 in the ratio 4:3

    Answer: 20 and 15
  5. 5. Statistics

    Calculate the mean of: 27, 43, 21, 46, 26, 16

    Answer: 29.8