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Cornerstone Dec 3 - 9 25 questions
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Monday 3 December 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 11 = 27

    Answer: x = 4
  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: 8, 25, 2, 13

    Answer: 12

Tuesday 4 December 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 3⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 6x + 12 = 42

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Divide 224 in the ratio 4:1:3

    Answer: 112, 28 and 84
  5. 5. Statistics

    Calculate the mean of: 29, 36, 6, 25, 20, 16

    Answer: 22

Wednesday 5 December 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 6⁄8

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 6x - 14 = 10

    Answer: x = 4
  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

    Divide 161 in the ratio 1:3:3

    Answer: 23, 69 and 69
  5. 5. Statistics

    Find the mean of: 11, 12, 10

    Answer: 11

Thursday 6 December 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 4⁄8

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 5x - 18 = 37

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Divide 180 in the ratio 3:4:2

    Answer: 60, 80 and 40
  5. 5. Statistics

    Find the mean of: 2, 13, 9

    Answer: 8

Friday 7 December 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 1⁄7

    Answer: 10⁄21
  2. 2. Algebra

    Solve: 7x + 13 = 34

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 12.08cm
  4. 4. Ratio

    Divide 154 in the ratio 2:1:4

    Answer: 44, 22 and 88
  5. 5. Statistics

    Calculate the mean of: 14, 39, 11, 7, 41, 16, 14. Give your answer to 2 decimal places

    Answer: 20.29