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Cornerstone Apr 5 - 11 25 questions
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Monday 5 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 1⁄6

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x - 9 = 39

    Answer: x = 12
  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 91 in the ratio 3:2:2

    Answer: 39, 26 and 26
  5. 5. Statistics

    Find the mean of: 10, 5, 7, 1, 2

    Answer: 5

Tuesday 6 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄11 + 2⁄11

    Answer: 7⁄11
  2. 2. Algebra

    Solve: 5x - 14 = 31

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Divide 77 in the ratio 2:1:4

    Answer: 22, 11 and 44
  5. 5. Statistics

    Find the mean of: 19, 8, 3

    Answer: 10

Wednesday 7 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 1⁄5

    Answer: 27⁄35
  2. 2. Algebra

    Solve: 3x + 15 = 36

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 4cm

    Answer: 5cm
  4. 4. Ratio

    Divide 144 in the ratio 2:1:3

    Answer: 48, 24 and 72
  5. 5. Statistics

    Calculate the mean of: 7, 29, 19, 10, 7, 5, 40. Give your answer to 2 decimal places

    Answer: 16.71

Thursday 8 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 3⁄6

    Answer: 13⁄10
  2. 2. Algebra

    Solve: 4x + 8 = 36

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 12.65cm
  4. 4. Ratio

    Divide 112 in the ratio 3:4:1

    Answer: 42, 56 and 14
  5. 5. Statistics

    Calculate the mean of: 35, 17, 18, 43, 12, 45, 49. Give your answer to 2 decimal places

    Answer: 31.29

Friday 9 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x - 18 = 14

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Divide 145 in the ratio 2:1:2

    Answer: 58, 29 and 58
  5. 5. Statistics

    Find the mean of: 13, 12, 2, 10, 13

    Answer: 10