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Cornerstone Jul 30 - Aug 5 25 questions
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Monday 30 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 2⁄3

    Answer: 17⁄12
  2. 2. Algebra

    Solve: 8x - 12 = 20

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio

    Divide 133 in the ratio 2:3:2

    Answer: 38, 57 and 38
  5. 5. Statistics

    Find the mean of: 15, 16, 2

    Answer: 11

Tuesday 31 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄9 + 1⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 5x + 9 = 39

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Divide 138 in the ratio 2:3:1

    Answer: 46, 69 and 23
  5. 5. Statistics

    Calculate the mean of: 14, 11, 11, 34, 26, 50, 11. Give your answer to 2 decimal places

    Answer: 22.43

Wednesday 1 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 5x - 15 = 50

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 65 in the ratio 4:1

    Answer: 52 and 13
  5. 5. Statistics

    Find the mean of: 5, 9, 2, 8, 16

    Answer: 8

Thursday 2 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄10 + 6⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 3x - 14 = 25

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 112 in the ratio 4:3

    Answer: 64 and 48
  5. 5. Statistics

    Find the mean of: 14, 2, 4, 19, 16

    Answer: 11

Friday 3 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 4⁄8

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 5x + 7 = 62

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics

    Calculate the mean of: 41, 11, 42, 44, 22, 25, 42, 34. Give your answer to 2 decimal places

    Answer: 32.63