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Cornerstone May 3 - 9 25 questions
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Monday 3 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄8 + 1⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 6x - 7 = 53

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 78 in the ratio 1:4:1

    Answer: 13, 52 and 13
  5. 5. Statistics

    Find the mean of: 4, 19, 15, 2

    Answer: 10

Tuesday 4 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄11 + 1⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 7x - 12 = 16

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 114 in the ratio 2:1

    Answer: 76 and 38
  5. 5. Statistics

    Calculate the mean of: 22, 8, 31, 32, 24, 14, 25, 8

    Answer: 20.5

Wednesday 5 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 2⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 7x + 7 = 56

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 16.28cm
  4. 4. Ratio

    Share 50 in the ratio 4:1

    Answer: 40 and 10
  5. 5. Statistics

    Find the mean of: 13, 14, 12

    Answer: 13

Thursday 6 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄12 + 4⁄12

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 4x + 10 = 34

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Share 100 in the ratio 3:2

    Answer: 60 and 40
  5. 5. Statistics

    Find the mean of: 1, 20, 9

    Answer: 10

Friday 7 May 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 1⁄5

    Answer: 9⁄20
  2. 2. Algebra

    Solve: 4x - 8 = 28

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 12.08cm
  4. 4. Ratio

    Share 133 in the ratio 3:4

    Answer: 57 and 76
  5. 5. Statistics

    Calculate the mean of: 41, 35, 34, 22, 30, 30, 35, 5

    Answer: 29