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Cornerstone Sep 29 - Oct 5 25 questions
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Monday 29 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 1⁄3

    Answer: 8⁄15
  2. 2. Algebra

    Solve: 5x - 12 = 23

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Share 105 in the ratio 4:3

    Answer: 60 and 45
  5. 5. Statistics

    Find the mean of: 17, 18, 4

    Answer: 13

Tuesday 30 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 7⁄8

    Answer: 97⁄56
  2. 2. Algebra

    Solve: 4x - 17 = 3

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 16.28cm
  4. 4. Ratio

    Share 40 in the ratio 3:2

    Answer: 24 and 16
  5. 5. Statistics

    Find the mean of: 10, 5, 7, 10

    Answer: 8

Wednesday 1 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄6

    Answer: 3⁄2
  2. 2. Algebra

    Solve: 8x - 14 = 26

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 5.66cm
  4. 4. Ratio

    Share 55 in the ratio 2:3

    Answer: 22 and 33
  5. 5. Statistics

    Calculate the mean of: 24, 37, 42, 33, 49, 42. Give your answer to 2 decimal places

    Answer: 37.83

Thursday 2 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 8x - 14 = 58

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Share 63 in the ratio 3:4

    Answer: 27 and 36
  5. 5. Statistics

    Calculate the mean of: 32, 7, 25, 47, 20, 36. Give your answer to 2 decimal places

    Answer: 27.83

Friday 3 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 1⁄3

    Answer: 13⁄12
  2. 2. Algebra

    Solve: 2x + 10 = 32

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 12.08cm
  4. 4. Ratio

    Share 36 in the ratio 1:2

    Answer: 12 and 24
  5. 5. Statistics

    Find the mean of: 6, 17, 9, 2, 11

    Answer: 9