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Cornerstone Jan 30 - Feb 5 25 questions
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Monday 30 January 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 8x - 19 = 85

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 16.97cm
  4. 4. Ratio

    Share 80 in the ratio 1:4

    Answer: 16 and 64
  5. 5. Statistics

    Calculate the mean of: 41, 35, 10, 28, 11, 31, 44, 30

    Answer: 28.75

Tuesday 31 January 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 6⁄8

    Answer: 13⁄12
  2. 2. Algebra

    Solve: 4x + 5 = 21

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 28 in the ratio 1:3

    Answer: 7 and 21
  5. 5. Statistics

    Find the mean of: 16, 10, 4, 18, 22

    Answer: 14

Wednesday 1 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 2⁄3

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 5x - 14 = 36

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio

    Share 42 in the ratio 2:1

    Answer: 28 and 14
  5. 5. Statistics

    Calculate the mean of: 34, 17, 19, 10, 48, 6. Give your answer to 2 decimal places

    Answer: 22.33

Thursday 2 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 6x - 10 = 44

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 25 in the ratio 4:1

    Answer: 20 and 5
  5. 5. Statistics

    Calculate the mean of: 20, 44, 11, 43, 18, 19, 11. Give your answer to 2 decimal places

    Answer: 23.71

Friday 3 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 2⁄3

    Answer: 37⁄24
  2. 2. Algebra

    Solve: 4x + 7 = 39

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 16.4cm
  4. 4. Ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics

    Find the mean of: 11, 23, 19, 3

    Answer: 14