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Cornerstone May 2 - 8 25 questions
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Monday 2 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 15 = 63

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 14.14cm
  4. 4. Ratio

    Divide 168 in the ratio 4:1:1

    Answer: 112, 28 and 28
  5. 5. Statistics

    Calculate the mean of: 45, 28, 31, 7, 14, 39, 29, 10. Give your answer to 2 decimal places

    Answer: 25.38

Tuesday 3 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 7⁄8

    Answer: 97⁄56
  2. 2. Algebra

    Solve: 4x - 5 = 51

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Divide 60 in the ratio 3:1:2

    Answer: 30, 10 and 20
  5. 5. Statistics

    Find the mean of: 8, 12, 15, 18, 7

    Answer: 12

Wednesday 4 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 3⁄8

    Answer: 9⁄8
  2. 2. Algebra

    Solve: 6x - 5 = 49

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.8cm
  4. 4. Ratio

    Share 75 in the ratio 3:2

    Answer: 45 and 30
  5. 5. Statistics

    Calculate the mean of: 8, 10, 22, 5, 6, 6

    Answer: 9.5

Thursday 5 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 1⁄5

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 7x + 12 = 68

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 56 in the ratio 1:3

    Answer: 14 and 42
  5. 5. Statistics

    Find the mean of: 17, 3, 15, 25

    Answer: 15

Friday 6 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 1⁄4

    Answer: 5⁄12
  2. 2. Algebra

    Solve: 6x + 11 = 71

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 133 in the ratio 3:4

    Answer: 57 and 76
  5. 5. Statistics

    Find the mean of: 12, 19, 17, 9, 13

    Answer: 14