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Cornerstone Aug 22 - 28 25 questions
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Monday 22 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x - 13 = 92

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Divide 210 in the ratio 4:1:2

    Answer: 120, 30 and 60
  5. 5. Statistics

    Find the mean of: 2, 17, 14

    Answer: 11

Tuesday 23 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 1⁄4

    Answer: 13⁄20
  2. 2. Algebra

    Solve: 5x + 10 = 30

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio

    Divide 140 in the ratio 2:2:1

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

    Calculate the mean of: 28, 30, 38, 50, 33, 21. Give your answer to 2 decimal places

    Answer: 33.33

Wednesday 24 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 2⁄3

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 6x + 10 = 58

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 15.62cm
  4. 4. Ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics

    Find the mean of: 15, 6, 20, 19

    Answer: 15

Thursday 25 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 1⁄9

    Answer: 4⁄9
  2. 2. Algebra

    Solve: 7x - 12 = 51

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 108 in the ratio 1:2

    Answer: 36 and 72
  5. 5. Statistics

    Calculate the mean of: 34, 6, 46, 31, 29, 41, 16, 31

    Answer: 29.25

Friday 26 August 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 4⁄8

    Answer: 19⁄14
  2. 2. Algebra

    Solve: 7x - 5 = 100

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 13.6cm
  4. 4. Ratio

    Share 32 in the ratio 3:1

    Answer: 24 and 8
  5. 5. Statistics

    Calculate the mean of: 25, 33, 25, 35, 43, 26, 48, 37

    Answer: 34