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Cornerstone May 30 - Jun 5 25 questions
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Monday 30 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 7x + 4 = 32

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Share 108 in the ratio 1:2

    Answer: 36 and 72
  5. 5. Statistics

    Calculate the mean of: 32, 43, 41, 27, 15, 29, 18. Give your answer to 2 decimal places

    Answer: 29.29

Tuesday 31 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 6⁄8

    Answer: 31⁄20
  2. 2. Algebra

    Solve: 7x - 9 = 75

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 64 in the ratio 3:1

    Answer: 48 and 16
  5. 5. Statistics

    Find the mean of: 2, 10, 15, 14, 9

    Answer: 10

Wednesday 1 June 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 6⁄7

    Answer: 25⁄21
  2. 2. Algebra

    Solve: 2x + 3 = 11

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Calculate the mean of: 44, 17, 41, 11, 10, 42

    Answer: 27.5

Thursday 2 June 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 2⁄9

    Answer: 5⁄9
  2. 2. Algebra

    Solve: 7x + 8 = 85

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 119 in the ratio 3:4

    Answer: 51 and 68
  5. 5. Statistics

    Calculate the mean of: 7, 32, 36, 39, 18, 50, 21

    Answer: 29

Friday 3 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: 4x - 11 = 5

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.03cm
  4. 4. Ratio

    Share 80 in the ratio 4:1

    Answer: 64 and 16
  5. 5. Statistics

    Find the mean of: 1, 7, 7

    Answer: 5