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Cornerstone Oct 17 - 23 25 questions
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Monday 17 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 7⁄8

    Answer: 29⁄24
  2. 2. Algebra

    Solve: 2x + 9 = 29

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 10.63cm
  4. 4. Ratio

    Divide 182 in the ratio 2:3:2

    Answer: 52, 78 and 52
  5. 5. Statistics

    Find the mean of: 8, 15, 17, 8

    Answer: 12

Tuesday 18 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄8 + 1⁄5

    Answer: 19⁄20
  2. 2. Algebra

    Solve: 3x + 11 = 20

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 15.56cm
  4. 4. Ratio

    Divide 162 in the ratio 4:1:4

    Answer: 72, 18 and 72
  5. 5. Statistics

    Find the mean of: 15, 17, 17, 18, 3

    Answer: 14

Wednesday 19 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄9 + 6⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 7x - 5 = 93

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Divide 138 in the ratio 4:1:1

    Answer: 92, 23 and 23
  5. 5. Statistics

    Calculate the mean of: 31, 8, 6, 39, 18, 17. Give your answer to 2 decimal places

    Answer: 19.83

Thursday 20 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 6x - 14 = 70

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 96 in the ratio 1:3:2

    Answer: 16, 48 and 32
  5. 5. Statistics

    Find the mean of: 12, 6, 3, 20, 19

    Answer: 12

Friday 21 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄11 + 1⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 7x + 4 = 53

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 98 in the ratio 1:4:2

    Answer: 14, 56 and 28
  5. 5. Statistics

    Calculate the mean of: 33, 27, 29, 10, 14, 14. Give your answer to 2 decimal places

    Answer: 21.17