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Cornerstone May 10 - 16 25 questions
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Monday 10 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄12 + 5⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x + 15 = 27

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 14.42cm
  4. 4. Ratio

    Share 33 in the ratio 1:2

    Answer: 11 and 22
  5. 5. Statistics

    Find the mean of: 13, 19, 2, 19, 12

    Answer: 13

Tuesday 11 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄4

    Answer: 17⁄12
  2. 2. Algebra

    Solve: 6x - 9 = 45

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 63 in the ratio 4:3

    Answer: 36 and 27
  5. 5. Statistics

    Calculate the mean of: 25, 30, 40, 15, 21, 11, 18. Give your answer to 2 decimal places

    Answer: 22.86

Wednesday 12 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄10 + 3⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 2x - 14 = 10

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 6cm

    Answer: 10cm
  4. 4. Ratio

    Share 40 in the ratio 1:3

    Answer: 10 and 30
  5. 5. Statistics

    Calculate the mean of: 45, 25, 7, 46, 23, 5. Give your answer to 2 decimal places

    Answer: 25.17

Thursday 13 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 3⁄8

    Answer: 9⁄8
  2. 2. Algebra

    Solve: 4x + 14 = 58

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio

    Share 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics

    Find the mean of: 14, 3, 6, 13, 19

    Answer: 11

Friday 14 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄5

    Answer: 16⁄15
  2. 2. Algebra

    Solve: 6x + 14 = 62

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 96 in the ratio 3:3:2

    Answer: 36, 36 and 24
  5. 5. Statistics

    Calculate the mean of: 31, 21, 46, 31, 20, 24, 38. Give your answer to 2 decimal places

    Answer: 30.14