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Cornerstone Mar 17 - 23 25 questions
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Monday 17 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 6x - 19 = 65

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 209 in the ratio 4:4:3

    Answer: 76, 76 and 57
  5. 5. Statistics

    Calculate the mean of: 14, 14, 39, 39, 49, 43, 50. Give your answer to 2 decimal places

    Answer: 35.43

Tuesday 18 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄11 + 7⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 5x - 7 = 63

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Divide 84 in the ratio 1:2:4

    Answer: 12, 24 and 48
  5. 5. Statistics

    Calculate the mean of: 17, 43, 9, 25, 15, 28. Give your answer to 2 decimal places

    Answer: 22.83

Wednesday 19 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 1⁄7

    Answer: 33⁄35
  2. 2. Algebra

    Solve: 4x + 15 = 43

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio

    Divide 117 in the ratio 3:2:4

    Answer: 39, 26 and 52
  5. 5. Statistics

    Find the mean of: 7, 20, 24, 5

    Answer: 14

Thursday 20 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 5x + 7 = 42

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 15.62cm
  4. 4. Ratio

    Divide 70 in the ratio 1:1:3

    Answer: 14, 14 and 42
  5. 5. Statistics

    Calculate the mean of: 33, 32, 35, 12, 10, 31

    Answer: 25.5

Friday 21 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 6⁄7

    Answer: 69⁄56
  2. 2. Algebra

    Solve: 4x - 13 = 11

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 11.31cm
  4. 4. Ratio

    Divide 112 in the ratio 1:1:2

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

    Find the mean of: 6, 11, 5, 10

    Answer: 8