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Cornerstone Apr 25 - May 1 25 questions
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Monday 25 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄8

    Answer: 11⁄24
  2. 2. Algebra

    Solve: 4x - 20 = 4

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio

    Divide 184 in the ratio 3:2:3

    Answer: 69, 46 and 69
  5. 5. Statistics

    Calculate the mean of: 21, 47, 7, 34, 5, 21

    Answer: 22.5

Tuesday 26 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 2⁄10

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 4x - 16 = 32

    Answer: x = 12
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 135 in the ratio 4:1:4

    Answer: 60, 15 and 60
  5. 5. Statistics

    Calculate the mean of: 27, 43, 40, 28, 48, 40, 39, 33

    Answer: 37.25

Wednesday 27 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄7 + 3⁄4

    Answer: 33⁄28
  2. 2. Algebra

    Solve: 6x + 13 = 55

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 5.66cm
  4. 4. Ratio

    Divide 210 in the ratio 1:2:2

    Answer: 42, 84 and 84
  5. 5. Statistics

    Find the mean of: 1, 8, 9

    Answer: 6

Thursday 28 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 1⁄3

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 3x + 11 = 32

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 6.4cm
  4. 4. Ratio

    Divide 50 in the ratio 2:2:1

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

    Find the mean of: 4, 9, 2

    Answer: 5

Friday 29 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 5⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 8x - 8 = 96

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.52cm
  4. 4. Ratio

    Divide 135 in the ratio 2:4:3

    Answer: 30, 60 and 45
  5. 5. Statistics

    Calculate the mean of: 9, 26, 9, 22, 9, 34, 43. Give your answer to 2 decimal places

    Answer: 21.71