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Cornerstone Aug 6 - 12 25 questions
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Monday 6 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄4

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 8x - 18 = 22

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 144 in the ratio 4:1:4

    Answer: 64, 16 and 64
  5. 5. Statistics

    Calculate the mean of: 36, 35, 44, 29, 9, 41, 8. Give your answer to 2 decimal places

    Answer: 28.86

Tuesday 7 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 3⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 6x + 4 = 70

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.3cm
  4. 4. Ratio

    Divide 240 in the ratio 2:1:2

    Answer: 96, 48 and 96
  5. 5. Statistics

    Find the mean of: 4, 11, 18, 15

    Answer: 12

Wednesday 8 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 6x + 8 = 32

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Divide 152 in the ratio 1:3:4

    Answer: 19, 57 and 76
  5. 5. Statistics

    Find the mean of: 4, 8, 13, 7

    Answer: 8

Thursday 9 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 6⁄7

    Answer: 69⁄56
  2. 2. Algebra

    Solve: 4x - 20 = 20

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Divide 150 in the ratio 3:2:1

    Answer: 75, 50 and 25
  5. 5. Statistics

    Calculate the mean of: 43, 25, 30, 36, 20, 11

    Answer: 27.5

Friday 10 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄6

    Answer: 3⁄2
  2. 2. Algebra

    Solve: 6x - 16 = 44

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 15.62cm
  4. 4. Ratio

    Divide 91 in the ratio 3:3:1

    Answer: 39, 39 and 13
  5. 5. Statistics

    Calculate the mean of: 28, 38, 43, 44, 36, 33, 23

    Answer: 35