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Cornerstone Nov 1 - 7 25 questions
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Monday 1 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 15 = 62

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 126 in the ratio 3:4

    Answer: 54 and 72
  5. 5. Statistics

    Find the mean of: 10, 13, 2, 11, 4

    Answer: 8

Tuesday 2 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 1⁄4

    Answer: 31⁄28
  2. 2. Algebra

    Solve: 4x - 17 = 31

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics

    Find the mean of: 7, 2, 14, 9

    Answer: 8

Wednesday 3 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 1⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 2x + 6 = 12

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 30 in the ratio 3:2

    Answer: 18 and 12
  5. 5. Statistics

    Calculate the mean of: 37, 30, 5, 42, 23, 48, 22. Give your answer to 2 decimal places

    Answer: 29.57

Thursday 4 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 3⁄8

    Answer: 5⁄8
  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

    Divide 184 in the ratio 1:1:2

    Answer: 46, 46 and 92
  5. 5. Statistics

    Find the mean of: 8, 20, 14, 17, 16

    Answer: 15

Friday 5 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄7 + 2⁄6

    Answer: 16⁄21
  2. 2. Algebra

    Solve: 8x - 19 = 85

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio

    Divide 180 in the ratio 3:1:2

    Answer: 90, 30 and 60
  5. 5. Statistics

    Calculate the mean of: 6, 21, 5, 46, 43, 9, 42. Give your answer to 2 decimal places

    Answer: 24.57