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Cornerstone May 21 - 27 25 questions
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Monday 21 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 2⁄6

    Answer: 19⁄21
  2. 2. Algebra

    Solve: 5x + 15 = 70

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 7.21cm
  4. 4. Ratio

    Share 102 in the ratio 1:2

    Answer: 34 and 68
  5. 5. Statistics

    Calculate the mean of: 7, 44, 33, 25, 17, 34, 50

    Answer: 30

Tuesday 22 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄9 + 2⁄9

    Answer: 4⁄9
  2. 2. Algebra

    Solve: 7x + 3 = 45

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Calculate the mean of: 12, 30, 45, 15, 24, 36, 44. Give your answer to 2 decimal places

    Answer: 29.43

Wednesday 23 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 2⁄5

    Answer: 11⁄15
  2. 2. Algebra

    Solve: 5x - 20 = 45

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio

    Share 35 in the ratio 3:2

    Answer: 21 and 14
  5. 5. Statistics

    Find the mean of: 8, 14, 12, 10

    Answer: 11

Thursday 24 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 5⁄7

    Answer: 39⁄35
  2. 2. Algebra

    Solve: 8x - 16 = 48

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 119 in the ratio 2:4:1

    Answer: 34, 68 and 17
  5. 5. Statistics

    Calculate the mean of: 26, 35, 19, 22, 12, 45, 7, 18

    Answer: 23

Friday 25 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 7x + 9 = 44

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 156 in the ratio 1:2:3

    Answer: 26, 52 and 78
  5. 5. Statistics

    Find the mean of: 6, 5, 11, 20, 3

    Answer: 9