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Cornerstone Aug 2 - 8 25 questions
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Monday 2 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄11 + 2⁄11

    Answer: 3⁄11
  2. 2. Algebra

    Solve: 5x - 13 = 37

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.44cm
  4. 4. Ratio

    Divide 176 in the ratio 1:1:2

    Answer: 44, 44 and 88
  5. 5. Statistics

    Calculate the mean of: 23, 50, 30, 37, 26, 24. Give your answer to 2 decimal places

    Answer: 31.67

Tuesday 3 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 3x + 3 = 24

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 19.21cm
  4. 4. Ratio

    Divide 99 in the ratio 3:4:2

    Answer: 33, 44 and 22
  5. 5. Statistics

    Find the mean of: 13, 3, 11

    Answer: 9

Wednesday 4 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 4⁄6

    Answer: 16⁄15
  2. 2. Algebra

    Solve: 7x + 5 = 89

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.52cm
  4. 4. Ratio

    Share 85 in the ratio 4:1

    Answer: 68 and 17
  5. 5. Statistics

    Calculate the mean of: 31, 28, 29, 40, 28, 10, 42. Give your answer to 2 decimal places

    Answer: 29.71

Thursday 5 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄9 + 2⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 8x - 9 = 39

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 72 in the ratio 1:3

    Answer: 18 and 54
  5. 5. Statistics

    Find the mean of: 15, 9, 18

    Answer: 14

Friday 6 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 2⁄4

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 3x - 10 = 8

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 6cm

    Answer: 10cm
  4. 4. Ratio

    Share 65 in the ratio 3:2

    Answer: 39 and 26
  5. 5. Statistics

    Find the mean of: 8, 20, 6, 6

    Answer: 10