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Cornerstone Aug 8 - 14 25 questions
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Monday 8 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 4⁄6

    Answer: 32⁄21
  2. 2. Algebra

    Solve: 4x + 5 = 29

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Share 56 in the ratio 3:4

    Answer: 24 and 32
  5. 5. Statistics

    Calculate the mean of: 31, 49, 29, 24, 12, 40. Give your answer to 2 decimal places

    Answer: 30.83

Tuesday 9 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 7x - 15 = 76

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 12.04cm
  4. 4. Ratio

    Share 85 in the ratio 2:3

    Answer: 34 and 51
  5. 5. Statistics

    Find the mean of: 19, 3, 17

    Answer: 13

Wednesday 10 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄10 + 1⁄10

    Answer: 1⁄5
  2. 2. Algebra

    Solve: 8x - 15 = 105

    Answer: x = 15
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Share 20 in the ratio 3:1

    Answer: 15 and 5
  5. 5. Statistics

    Find the mean of: 6, 20, 20, 2

    Answer: 12

Thursday 11 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄7 + 3⁄6

    Answer: 9⁄14
  2. 2. Algebra

    Solve: 6x + 3 = 21

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Share 15 in the ratio 1:2

    Answer: 5 and 10
  5. 5. Statistics

    Calculate the mean of: 25, 10, 40, 33, 22, 35, 37. Give your answer to 2 decimal places

    Answer: 28.86

Friday 12 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄12 + 5⁄12

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 7x + 4 = 53

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 66 in the ratio 2:1

    Answer: 44 and 22
  5. 5. Statistics

    Calculate the mean of: 42, 38, 10, 15, 20, 20. Give your answer to 2 decimal places

    Answer: 24.17