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Cornerstone Jun 20 - 26 25 questions
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Monday 20 June 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 2⁄4

    Answer: 15⁄14
  2. 2. Algebra

    Solve: 3x - 16 = 5

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 36 in the ratio 1:3

    Answer: 9 and 27
  5. 5. Statistics

    Calculate the mean of: 6, 30, 40, 26, 48, 11, 24, 10. Give your answer to 2 decimal places

    Answer: 24.38

Tuesday 21 June 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄9 + 7⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 6x + 10 = 82

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.69cm
  4. 4. Ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics

    Find the mean of: 18, 18, 6

    Answer: 14

Wednesday 22 June 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 3⁄5

    Answer: 17⁄20
  2. 2. Algebra

    Solve: 7x + 10 = 87

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Find the mean of: 2, 6, 10, 5, 2

    Answer: 5

Thursday 23 June 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄7 + 1⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: 2x - 19 = 11

    Answer: x = 15
  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

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics

    Calculate the mean of: 31, 46, 36, 20, 22, 42. Give your answer to 2 decimal places

    Answer: 32.83

Friday 24 June 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 2⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 18 = 24

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 11.18cm
  4. 4. Ratio

    Divide 144 in the ratio 1:2:3

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

    Find the mean of: 6, 4, 18, 16

    Answer: 11