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Cornerstone Aug 18 - 24 25 questions
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Monday 18 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄11 + 3⁄11

    Answer: 5⁄11
  2. 2. Algebra

    Solve: 7x + 5 = 82

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio

    Share 75 in the ratio 1:4

    Answer: 15 and 60
  5. 5. Statistics

    Find the mean of: 8, 7, 11, 10

    Answer: 9

Tuesday 19 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 4⁄7

    Answer: 31⁄42
  2. 2. Algebra

    Solve: 5x - 5 = 65

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 51 in the ratio 1:2

    Answer: 17 and 34
  5. 5. Statistics

    Calculate the mean of: 9, 15, 31, 26, 11, 28, 11, 20. Give your answer to 2 decimal places

    Answer: 18.88

Wednesday 20 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 8x - 12 = 84

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio

    Share 77 in the ratio 4:3

    Answer: 44 and 33
  5. 5. Statistics

    Find the mean of: 20, 17, 13, 7, 8

    Answer: 13

Thursday 21 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 3x + 8 = 38

    Answer: x = 10
  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: 30, 31, 28, 11, 40, 11, 19. Give your answer to 2 decimal places

    Answer: 24.29

Friday 22 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄8 + 3⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 4x + 7 = 55

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 6.71cm
  4. 4. Ratio

    Share 48 in the ratio 1:2

    Answer: 16 and 32
  5. 5. Statistics

    Calculate the mean of: 50, 45, 12, 27, 23, 13, 17, 7

    Answer: 24.25