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Cornerstone Sep 6 - 12 25 questions
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Monday 6 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 2⁄6

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 5x + 4 = 54

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 14.14cm
  4. 4. Ratio

    Divide 170 in the ratio 1:2:2

    Answer: 34, 68 and 68
  5. 5. Statistics

    Find the mean of: 7, 15, 15, 11

    Answer: 12

Tuesday 7 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄9 + 1⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 2x - 10 = 12

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 220 in the ratio 4:3:3

    Answer: 88, 66 and 66
  5. 5. Statistics

    Calculate the mean of: 34, 41, 7, 31, 13, 15, 5. Give your answer to 2 decimal places

    Answer: 20.86

Wednesday 8 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄11 + 5⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 2x - 5 = 9

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Divide 114 in the ratio 1:4:1

    Answer: 19, 76 and 19
  5. 5. Statistics

    Calculate the mean of: 25, 38, 15, 13, 34, 14. Give your answer to 2 decimal places

    Answer: 23.17

Thursday 9 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 2⁄5

    Answer: 34⁄35
  2. 2. Algebra

    Solve: 3x + 9 = 21

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 12.04cm
  4. 4. Ratio

    Divide 105 in the ratio 3:3:1

    Answer: 45, 45 and 15
  5. 5. Statistics

    Find the mean of: 20, 4, 14, 13, 19

    Answer: 14

Friday 10 September 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄7 + 5⁄8

    Answer: 51⁄56
  2. 2. Algebra

    Solve: 5x + 6 = 56

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 112 in the ratio 2:1:1

    Answer: 56, 28 and 28
  5. 5. Statistics

    Find the mean of: 16, 4, 14, 17, 9

    Answer: 12