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Cornerstone Jun 26 - Jul 2 25 questions
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Monday 26 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 2x - 19 = -5

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio

    Divide 165 in the ratio 3:4:4

    Answer: 45, 60 and 60
  5. 5. Statistics

    Calculate the mean of: 36, 12, 41, 20, 50, 44. Give your answer to 2 decimal places

    Answer: 33.83

Tuesday 27 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 5⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 3x + 9 = 30

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.76cm
  4. 4. Ratio

    Divide 136 in the ratio 3:3:2

    Answer: 51, 51 and 34
  5. 5. Statistics

    Find the mean of: 12, 15, 5, 12, 6

    Answer: 10

Wednesday 28 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄12 + 7⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 6x + 12 = 72

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Divide 60 in the ratio 2:2:1

    Answer: 24, 24 and 12
  5. 5. Statistics

    Find the mean of: 6, 19, 17

    Answer: 14

Thursday 29 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 1⁄7

    Answer: 41⁄42
  2. 2. Algebra

    Solve: 5x - 6 = 64

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio

    Divide 96 in the ratio 1:2:3

    Answer: 16, 32 and 48
  5. 5. Statistics

    Calculate the mean of: 39, 34, 38, 6, 21, 40, 40, 19. Give your answer to 2 decimal places

    Answer: 29.63

Friday 30 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄7 + 4⁄5

    Answer: 33⁄35
  2. 2. Algebra

    Solve: 5x - 15 = 25

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Divide 198 in the ratio 4:1:4

    Answer: 88, 22 and 88
  5. 5. Statistics

    Calculate the mean of: 50, 38, 28, 14, 24, 38

    Answer: 32