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Cornerstone Mar 5 - 11 25 questions
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Monday 5 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 7x + 14 = 49

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Share 108 in the ratio 1:2

    Answer: 36 and 72
  5. 5. Statistics

    Find the mean of: 3, 12, 3, 11, 21

    Answer: 10

Tuesday 6 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄7 + 1⁄4

    Answer: 27⁄28
  2. 2. Algebra

    Solve: 5x + 8 = 48

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 15 in the ratio 2:1

    Answer: 10 and 5
  5. 5. Statistics

    Find the mean of: 3, 11, 18, 10, 18

    Answer: 12

Wednesday 7 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 7 = 91

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 84 in the ratio 1:2

    Answer: 28 and 56
  5. 5. Statistics

    Calculate the mean of: 34, 20, 30, 25, 34, 50, 47. Give your answer to 2 decimal places

    Answer: 34.29

Thursday 8 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 6x - 15 = 15

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 60 in the ratio 4:1

    Answer: 48 and 12
  5. 5. Statistics

    Calculate the mean of: 9, 46, 23, 8, 37, 16, 38. Give your answer to 2 decimal places

    Answer: 25.29

Friday 9 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄7 + 1⁄3

    Answer: 22⁄21
  2. 2. Algebra

    Solve: 4x + 10 = 46

    Answer: x = 9
  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 24 in the ratio 3:1

    Answer: 18 and 6
  5. 5. Statistics

    Find the mean of: 1, 19, 15, 2, 3

    Answer: 8