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Cornerstone Aug 26 - Sep 1 25 questions
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Monday 26 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 5⁄8

    Answer: 31⁄24
  2. 2. Algebra

    Solve: 5x - 10 = 65

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 200 in the ratio 4:3:1

    Answer: 100, 75 and 25
  5. 5. Statistics

    Find the mean of: 11, 22, 6

    Answer: 13

Tuesday 27 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 4x + 13 = 49

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio

    Divide 77 in the ratio 2:3:2

    Answer: 22, 33 and 22
  5. 5. Statistics

    Calculate the mean of: 23, 10, 50, 16, 37, 42, 17, 22. Give your answer to 2 decimal places

    Answer: 27.13

Wednesday 28 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 4x + 9 = 53

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Divide 171 in the ratio 4:4:1

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

    Calculate the mean of: 24, 20, 19, 9, 12, 32, 7. Give your answer to 2 decimal places

    Answer: 17.57

Thursday 29 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 3⁄7

    Answer: 23⁄21
  2. 2. Algebra

    Solve: 5x - 18 = 17

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Divide 231 in the ratio 4:3:4

    Answer: 84, 63 and 84
  5. 5. Statistics

    Find the mean of: 5, 8, 2

    Answer: 5

Friday 30 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 6x - 15 = 27

    Answer: x = 7
  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

    Divide 182 in the ratio 2:4:1

    Answer: 52, 104 and 26
  5. 5. Statistics

    Find the mean of: 18, 11, 10, 9

    Answer: 12