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Cornerstone Sep 24 - 30 25 questions
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Monday 24 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 1⁄8

    Answer: 3⁄8
  2. 2. Algebra

    Solve: 5x - 18 = 12

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 76 in the ratio 3:1

    Answer: 57 and 19
  5. 5. Statistics

    Calculate the mean of: 13, 10, 31, 25, 47, 14. Give your answer to 2 decimal places

    Answer: 23.33

Tuesday 25 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄7

    Answer: 29⁄21
  2. 2. Algebra

    Solve: 2x + 11 = 27

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.3cm
  4. 4. Ratio

    Share 39 in the ratio 1:2

    Answer: 13 and 26
  5. 5. Statistics

    Find the mean of: 13, 13, 13

    Answer: 13

Wednesday 26 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄12 + 2⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 3x + 12 = 39

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Share 91 in the ratio 3:4

    Answer: 39 and 52
  5. 5. Statistics

    Find the mean of: 2, 2, 18, 11, 2

    Answer: 7

Thursday 27 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 2⁄4

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 8x - 11 = 85

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 9.22cm
  4. 4. Ratio

    Share 85 in the ratio 1:4

    Answer: 17 and 68
  5. 5. Statistics

    Calculate the mean of: 18, 41, 14, 13, 22, 48, 5

    Answer: 23

Friday 28 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 2⁄6

    Answer: 14⁄15
  2. 2. Algebra

    Solve: 6x - 7 = 59

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 11.66cm
  4. 4. Ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics

    Calculate the mean of: 20, 26, 31, 33, 32, 23

    Answer: 27.5