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Cornerstone Nov 15 - 21 25 questions
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Monday 15 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 4x + 5 = 25

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio

    Share 45 in the ratio 2:1

    Answer: 30 and 15
  5. 5. Statistics

    Calculate the mean of: 40, 17, 38, 35, 30, 46, 46, 46

    Answer: 37.25

Tuesday 16 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 5⁄7

    Answer: 39⁄35
  2. 2. Algebra

    Solve: 2x + 11 = 25

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Share 36 in the ratio 1:2

    Answer: 12 and 24
  5. 5. Statistics

    Calculate the mean of: 46, 50, 38, 31, 48, 18

    Answer: 38.5

Wednesday 17 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 5x - 19 = 36

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics

    Find the mean of: 9, 7, 20

    Answer: 12

Thursday 18 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄7 + 1⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: 5x - 9 = 61

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 9.43cm
  4. 4. Ratio

    Share 85 in the ratio 3:2

    Answer: 51 and 34
  5. 5. Statistics

    Find the mean of: 18, 12, 14, 3, 3

    Answer: 10

Friday 19 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 1⁄7

    Answer: 26⁄35
  2. 2. Algebra

    Solve: 2x + 3 = 17

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 36 in the ratio 3:1

    Answer: 27 and 9
  5. 5. Statistics

    Calculate the mean of: 43, 50, 35, 24, 36, 9. Give your answer to 2 decimal places

    Answer: 32.83