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Cornerstone Nov 3 - 9 25 questions
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Monday 3 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 5⁄8

    Answer: 23⁄24
  2. 2. Algebra

    Solve: 3x - 10 = 29

    Answer: x = 13
  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

    Divide 180 in the ratio 1:4:1

    Answer: 30, 120 and 30
  5. 5. Statistics

    Find the mean of: 18, 11, 7

    Answer: 12

Tuesday 4 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 3⁄7

    Answer: 16⁄21
  2. 2. Algebra

    Solve: 7x - 9 = 96

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.3cm
  4. 4. Ratio

    Share 70 in the ratio 4:1

    Answer: 56 and 14
  5. 5. Statistics

    Calculate the mean of: 9, 24, 45, 6, 33, 15, 18, 26

    Answer: 22

Wednesday 5 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 2⁄8

    Answer: 3⁄8
  2. 2. Algebra

    Solve: 2x + 8 = 32

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 14.42cm
  4. 4. Ratio

    Share 55 in the ratio 4:1

    Answer: 44 and 11
  5. 5. Statistics

    Find the mean of: 13, 6, 17

    Answer: 12

Thursday 6 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄5

    Answer: 16⁄15
  2. 2. Algebra

    Solve: 5x + 7 = 27

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio

    Share 84 in the ratio 4:3

    Answer: 48 and 36
  5. 5. Statistics

    Find the mean of: 8, 2, 20

    Answer: 10

Friday 7 November 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄12 + 4⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x - 18 = 57

    Answer: x = 15
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Calculate the mean of: 49, 49, 25, 29, 21, 33, 10. Give your answer to 2 decimal places

    Answer: 30.86