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Cornerstone Nov 25 - Dec 1 25 questions
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Monday 25 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 4⁄7

    Answer: 37⁄28
  2. 2. Algebra

    Solve: 8x - 6 = 58

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Share 80 in the ratio 2:3

    Answer: 32 and 48
  5. 5. Statistics

    Calculate the mean of: 10, 39, 29, 7, 7, 21. Give your answer to 2 decimal places

    Answer: 18.83

Tuesday 26 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x - 20 = 36

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio

    Share 48 in the ratio 2:1

    Answer: 32 and 16
  5. 5. Statistics

    Calculate the mean of: 48, 32, 42, 36, 12, 48, 29. Give your answer to 2 decimal places

    Answer: 35.29

Wednesday 27 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 4⁄6

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 6x + 9 = 51

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Share 70 in the ratio 1:4

    Answer: 14 and 56
  5. 5. Statistics

    Find the mean of: 3, 10, 6, 9

    Answer: 7

Thursday 28 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 3⁄8

    Answer: 23⁄40
  2. 2. Algebra

    Solve: 6x + 6 = 24

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 21 in the ratio 1:2

    Answer: 7 and 14
  5. 5. Statistics

    Find the mean of: 24, 6, 6, 4

    Answer: 10

Friday 29 November 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 1⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 2x - 13 = 7

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 17.49cm
  4. 4. Ratio

    Share 25 in the ratio 4:1

    Answer: 20 and 5
  5. 5. Statistics

    Calculate the mean of: 40, 32, 11, 13, 12, 24, 30, 47. Give your answer to 2 decimal places

    Answer: 26.13