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Cornerstone Oct 28 - Nov 3 25 questions
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Monday 28 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 4⁄6

    Answer: 32⁄21
  2. 2. Algebra

    Solve: 5x - 15 = 60

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Divide 147 in the ratio 3:1:3

    Answer: 63, 21 and 63
  5. 5. Statistics

    Find the mean of: 19, 8, 6

    Answer: 11

Tuesday 29 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄11 + 1⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 4x + 5 = 53

    Answer: x = 12
  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

    Divide 84 in the ratio 1:4:1

    Answer: 14, 56 and 14
  5. 5. Statistics

    Calculate the mean of: 19, 38, 48, 10, 27, 41, 36, 30. Give your answer to 2 decimal places

    Answer: 31.13

Wednesday 30 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 2x + 13 = 35

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Divide 55 in the ratio 2:2:1

    Answer: 22, 22 and 11
  5. 5. Statistics

    Calculate the mean of: 31, 18, 46, 36, 19, 47. Give your answer to 2 decimal places

    Answer: 32.83

Thursday 31 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 1⁄4

    Answer: 21⁄20
  2. 2. Algebra

    Solve: 8x - 18 = 46

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio

    Divide 84 in the ratio 1:4:2

    Answer: 12, 48 and 24
  5. 5. Statistics

    Find the mean of: 17, 20, 3, 20

    Answer: 15

Friday 1 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄8 + 3⁄7

    Answer: 31⁄56
  2. 2. Algebra

    Solve: 2x - 7 = 17

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 7.07cm
  4. 4. Ratio

    Divide 203 in the ratio 2:4:1

    Answer: 58, 116 and 29
  5. 5. Statistics

    Calculate the mean of: 39, 7, 37, 27, 22, 19. Give your answer to 2 decimal places

    Answer: 25.17