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Cornerstone Dec 5 - 11 25 questions
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Monday 5 December 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 1⁄7

    Answer: 2⁄7
  2. 2. Algebra

    Solve: 4x - 18 = 22

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.56cm
  4. 4. Ratio

    Share 33 in the ratio 1:2

    Answer: 11 and 22
  5. 5. Statistics

    Calculate the mean of: 41, 15, 34, 16, 21, 44, 42. Give your answer to 2 decimal places

    Answer: 30.43

Tuesday 6 December 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 7x - 12 = 86

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.54cm
  4. 4. Ratio

    Share 68 in the ratio 1:3

    Answer: 17 and 51
  5. 5. Statistics

    Calculate the mean of: 42, 30, 16, 6, 46, 26, 6, 18

    Answer: 23.75

Wednesday 7 December 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 2x + 7 = 31

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 119 in the ratio 4:3

    Answer: 68 and 51
  5. 5. Statistics

    Find the mean of: 11, 4, 3

    Answer: 6

Thursday 8 December 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 7x + 10 = 87

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio

    Share 25 in the ratio 3:2

    Answer: 15 and 10
  5. 5. Statistics

    Find the mean of: 18, 12, 2, 5, 13

    Answer: 10

Friday 9 December 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 4⁄5

    Answer: 22⁄15
  2. 2. Algebra

    Solve: 4x - 19 = 29

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 13.6cm
  4. 4. Ratio

    Share 32 in the ratio 3:1

    Answer: 24 and 8
  5. 5. Statistics

    Calculate the mean of: 27, 46, 18, 44, 33, 22, 46, 41. Give your answer to 2 decimal places

    Answer: 34.63