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Cornerstone May 29 - Jun 4 25 questions
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Monday 29 May 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 1⁄7

    Answer: 17⁄21
  2. 2. Algebra

    Solve: 7x - 11 = 94

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 40 in the ratio 3:2

    Answer: 24 and 16
  5. 5. Statistics

    Calculate the mean of: 20, 16, 36, 29, 19, 29, 22. Give your answer to 2 decimal places

    Answer: 24.43

Tuesday 30 May 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 1⁄7

    Answer: 13⁄42
  2. 2. Algebra

    Solve: 2x - 15 = 11

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 7.62cm
  4. 4. Ratio

    Share 42 in the ratio 4:3

    Answer: 24 and 18
  5. 5. Statistics

    Calculate the mean of: 11, 15, 26, 41, 19, 25. Give your answer to 2 decimal places

    Answer: 22.83

Wednesday 31 May 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 6x + 14 = 44

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 60 in the ratio 3:1

    Answer: 45 and 15
  5. 5. Statistics

    Find the mean of: 15, 3, 11, 19

    Answer: 12

Thursday 1 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄10 + 4⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 11 = 73

    Answer: x = 12
  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 33 in the ratio 1:2

    Answer: 11 and 22
  5. 5. Statistics

    Calculate the mean of: 43, 25, 11, 6, 9, 15. Give your answer to 2 decimal places

    Answer: 18.17

Friday 2 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 2⁄7

    Answer: 38⁄35
  2. 2. Algebra

    Solve: 3x - 12 = 6

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Share 95 in the ratio 4:1

    Answer: 76 and 19
  5. 5. Statistics

    Calculate the mean of: 25, 29, 47, 38, 11, 22. Give your answer to 2 decimal places

    Answer: 28.67