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Cornerstone Nov 14 - 20 25 questions
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Monday 14 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 8x - 12 = 28

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Share 119 in the ratio 4:3

    Answer: 68 and 51
  5. 5. Statistics

    Find the mean of: 8, 7, 6, 7, 7

    Answer: 7

Tuesday 15 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 3⁄4

    Answer: 19⁄20
  2. 2. Algebra

    Solve: 5x + 13 = 53

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Share 25 in the ratio 2:3

    Answer: 10 and 15
  5. 5. Statistics

    Calculate the mean of: 10, 48, 47, 29, 7, 34, 19, 35. Give your answer to 2 decimal places

    Answer: 28.63

Wednesday 16 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 1⁄9

    Answer: 4⁄9
  2. 2. Algebra

    Solve: 4x + 13 = 53

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 90 in the ratio 4:1

    Answer: 72 and 18
  5. 5. Statistics

    Calculate the mean of: 34, 33, 22, 12, 21, 49

    Answer: 28.5

Thursday 17 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 2⁄3

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x - 8 = 42

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio

    Share 80 in the ratio 4:1

    Answer: 64 and 16
  5. 5. Statistics

    Find the mean of: 14, 12, 3, 16, 20

    Answer: 13

Friday 18 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 7x - 16 = 47

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio

    Share 63 in the ratio 4:3

    Answer: 36 and 27
  5. 5. Statistics

    Find the mean of: 12, 2, 6, 6, 14

    Answer: 8