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Cornerstone Nov 4 - 10 25 questions
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Monday 4 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 5⁄6

    Answer: 4⁄3
  2. 2. Algebra

    Solve: 5x + 5 = 30

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.54cm
  4. 4. Ratio

    Share 91 in the ratio 3:4

    Answer: 39 and 52
  5. 5. Statistics

    Calculate the mean of: 26, 39, 33, 22, 19, 7, 25. Give your answer to 2 decimal places

    Answer: 24.43

Tuesday 5 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 2⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 5x - 19 = 26

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 52 in the ratio 3:1

    Answer: 39 and 13
  5. 5. Statistics

    Find the mean of: 19, 14, 24, 4, 4

    Answer: 13

Wednesday 6 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 8x - 5 = 83

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio

    Share 84 in the ratio 3:4

    Answer: 36 and 48
  5. 5. Statistics

    Find the mean of: 2, 14, 11, 13

    Answer: 10

Thursday 7 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 6x + 11 = 77

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 65 in the ratio 3:2

    Answer: 39 and 26
  5. 5. Statistics

    Calculate the mean of: 44, 49, 9, 6, 5, 31

    Answer: 24

Friday 8 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 1⁄7

    Answer: 3⁄7
  2. 2. Algebra

    Solve: 7x + 15 = 99

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Share 60 in the ratio 3:1

    Answer: 45 and 15
  5. 5. Statistics

    Calculate the mean of: 34, 31, 20, 9, 21, 33, 30, 14

    Answer: 24