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Cornerstone Jun 24 - 30 25 questions
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Monday 24 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄10 + 3⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 2x - 9 = 13

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics

    Calculate the mean of: 31, 27, 15, 29, 47, 5. Give your answer to 2 decimal places

    Answer: 25.67

Tuesday 25 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 3⁄7

    Answer: 16⁄21
  2. 2. Algebra

    Solve: 5x + 10 = 70

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio

    Share 77 in the ratio 4:3

    Answer: 44 and 33
  5. 5. Statistics

    Find the mean of: 16, 12, 13, 12, 12

    Answer: 13

Wednesday 26 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 3⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x + 13 = 34

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 98 in the ratio 4:3

    Answer: 56 and 42
  5. 5. Statistics

    Find the mean of: 6, 5, 7

    Answer: 6

Thursday 27 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 4⁄6

    Answer: 26⁄21
  2. 2. Algebra

    Solve: 4x - 15 = 29

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio

    Share 25 in the ratio 3:2

    Answer: 15 and 10
  5. 5. Statistics

    Calculate the mean of: 18, 41, 15, 42, 36, 44, 18. Give your answer to 2 decimal places

    Answer: 30.57

Friday 28 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄7 + 3⁄6

    Answer: 13⁄14
  2. 2. Algebra

    Solve: 6x - 12 = 42

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 5.66cm
  4. 4. Ratio

    Share 102 in the ratio 2:1

    Answer: 68 and 34
  5. 5. Statistics

    Calculate the mean of: 31, 34, 26, 49, 24, 35, 46, 6. Give your answer to 2 decimal places

    Answer: 31.38