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Cornerstone Aug 27 - Sep 2 25 questions
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Monday 27 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 6⁄7

    Answer: 31⁄28
  2. 2. Algebra

    Solve: 7x + 10 = 66

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 13.45cm
  4. 4. Ratio

    Divide 140 in the ratio 3:3:1

    Answer: 60, 60 and 20
  5. 5. Statistics

    Calculate the mean of: 42, 28, 42, 21, 47, 32, 42, 26

    Answer: 35

Tuesday 28 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 4⁄5

    Answer: 67⁄40
  2. 2. Algebra

    Solve: 3x + 9 = 45

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.65cm
  4. 4. Ratio

    Divide 102 in the ratio 1:2:3

    Answer: 17, 34 and 51
  5. 5. Statistics

    Calculate the mean of: 48, 23, 9, 8, 9, 35, 40. Give your answer to 2 decimal places

    Answer: 24.57

Wednesday 29 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 5x - 14 = 61

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 85 in the ratio 1:2:2

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

    Find the mean of: 8, 9, 10

    Answer: 9

Thursday 30 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: 2x - 8 = 0

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.23cm
  4. 4. Ratio

    Divide 270 in the ratio 4:3:2

    Answer: 120, 90 and 60
  5. 5. Statistics

    Find the mean of: 18, 4, 13, 20, 5

    Answer: 12

Friday 31 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄8 + 6⁄7

    Answer: 55⁄56
  2. 2. Algebra

    Solve: 7x + 6 = 62

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 150 in the ratio 1:1:3

    Answer: 30, 30 and 90
  5. 5. Statistics

    Calculate the mean of: 43, 17, 45, 14, 48, 5, 9, 31

    Answer: 26.5