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Cornerstone Apr 26 - May 2 25 questions
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Monday 26 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 2⁄6

    Answer: 13⁄12
  2. 2. Algebra

    Solve: 8x - 13 = 59

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Divide 117 in the ratio 4:3:2

    Answer: 52, 39 and 26
  5. 5. Statistics

    Calculate the mean of: 7, 48, 49, 14, 45, 36, 37. Give your answer to 2 decimal places

    Answer: 33.71

Tuesday 27 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 1⁄6

    Answer: 1⁄3
  2. 2. Algebra

    Solve: 6x + 10 = 64

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.23cm
  4. 4. Ratio

    Divide 40 in the ratio 2:1:1

    Answer: 20, 10 and 10
  5. 5. Statistics

    Find the mean of: 8, 2, 12, 6

    Answer: 7

Wednesday 28 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 2x + 10 = 22

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.76cm
  4. 4. Ratio

    Divide 216 in the ratio 4:2:3

    Answer: 96, 48 and 72
  5. 5. Statistics

    Find the mean of: 11, 12, 9, 20

    Answer: 13

Thursday 29 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 2⁄5

    Answer: 13⁄20
  2. 2. Algebra

    Solve: 8x - 20 = 100

    Answer: x = 15
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Divide 162 in the ratio 2:3:1

    Answer: 54, 81 and 27
  5. 5. Statistics

    Calculate the mean of: 37, 48, 23, 15, 44, 49

    Answer: 36

Friday 30 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 6⁄8

    Answer: 19⁄12
  2. 2. Algebra

    Solve: 8x - 12 = 36

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.26cm
  4. 4. Ratio

    Divide 90 in the ratio 1:4:4

    Answer: 10, 40 and 40
  5. 5. Statistics

    Calculate the mean of: 10, 29, 7, 11, 30, 25, 7

    Answer: 17