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Cornerstone Nov 13 - 19 25 questions
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Monday 13 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 1⁄3

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 6x + 6 = 72

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Divide 168 in the ratio 1:1:4

    Answer: 28, 28 and 112
  5. 5. Statistics

    Calculate the mean of: 10, 19, 39, 6, 19, 40. Give your answer to 2 decimal places

    Answer: 22.17

Tuesday 14 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄8

    Answer: 25⁄24
  2. 2. Algebra

    Solve: 5x + 11 = 71

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio

    Share 114 in the ratio 2:1

    Answer: 76 and 38
  5. 5. Statistics

    Find the mean of: 9, 11, 2, 2, 21

    Answer: 9

Wednesday 15 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 2⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 3x - 14 = 7

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 12.73cm
  4. 4. Ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics

    Calculate the mean of: 30, 30, 10, 37, 16, 49, 45

    Answer: 31

Thursday 16 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄7 + 1⁄3

    Answer: 13⁄21
  2. 2. Algebra

    Solve: 5x - 17 = 33

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 56 in the ratio 1:3

    Answer: 14 and 42
  5. 5. Statistics

    Calculate the mean of: 36, 50, 25, 33, 25, 36. Give your answer to 2 decimal places

    Answer: 34.17

Friday 17 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄12 + 2⁄12

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 4x + 10 = 26

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio

    Share 105 in the ratio 3:4

    Answer: 45 and 60
  5. 5. Statistics

    Find the mean of: 14, 15, 11, 2, 18

    Answer: 12