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Cornerstone Jun 11 - 17 25 questions
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Monday 11 June 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 3⁄7

    Answer: 53⁄42
  2. 2. Algebra

    Solve: 2x - 16 = -4

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 39 in the ratio 1:2

    Answer: 13 and 26
  5. 5. Statistics

    Find the mean of: 17, 7, 10, 13, 8

    Answer: 11

Tuesday 12 June 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄11 + 3⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 8x - 20 = 12

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 16.55cm
  4. 4. Ratio

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics

    Find the mean of: 2, 18, 6, 6

    Answer: 8

Wednesday 13 June 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄4

    Answer: 17⁄12
  2. 2. Algebra

    Solve: 5x + 11 = 46

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 65 in the ratio 1:4

    Answer: 13 and 52
  5. 5. Statistics

    Calculate the mean of: 45, 5, 31, 23, 37, 21

    Answer: 27

Thursday 14 June 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 2⁄3

    Answer: 16⁄15
  2. 2. Algebra

    Solve: 4x + 15 = 63

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 80 in the ratio 1:2:2

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

    Find the mean of: 4, 17, 12, 15, 17

    Answer: 13

Friday 15 June 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄9 + 6⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 6x - 19 = 29

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio

    Divide 108 in the ratio 2:1:1

    Answer: 54, 27 and 27
  5. 5. Statistics

    Calculate the mean of: 6, 42, 33, 23, 48, 21, 44

    Answer: 31