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Cornerstone Nov 7 - 13 25 questions
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Monday 7 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 1⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 5x + 13 = 68

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio

    Divide 176 in the ratio 3:4:1

    Answer: 66, 88 and 22
  5. 5. Statistics

    Find the mean of: 9, 17, 12, 18, 14

    Answer: 14

Tuesday 8 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 1⁄8

    Answer: 1⁄4
  2. 2. Algebra

    Solve: 5x + 3 = 33

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 4cm

    Answer: 5cm
  4. 4. Ratio

    Divide 75 in the ratio 1:1:3

    Answer: 15, 15 and 45
  5. 5. Statistics

    Find the mean of: 22, 13, 10

    Answer: 15

Wednesday 9 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 3x - 6 = 27

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Divide 96 in the ratio 1:2:1

    Answer: 24, 48 and 24
  5. 5. Statistics

    Calculate the mean of: 28, 50, 30, 20, 44, 25, 37. Give your answer to 2 decimal places

    Answer: 33.43

Thursday 10 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 3x - 9 = 36

    Answer: x = 15
  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

    Divide 210 in the ratio 2:2:1

    Answer: 84, 84 and 42
  5. 5. Statistics

    Calculate the mean of: 29, 35, 9, 29, 45, 14. Give your answer to 2 decimal places

    Answer: 26.83

Friday 11 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 3⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 4x + 12 = 44

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 98 in the ratio 1:4:2

    Answer: 14, 56 and 28
  5. 5. Statistics

    Find the mean of: 5, 4, 6

    Answer: 5