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Cornerstone Mar 7 - 13 25 questions
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Monday 7 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 6x + 13 = 73

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.65cm
  4. 4. Ratio

    Divide 65 in the ratio 1:2:2

    Answer: 13, 26 and 26
  5. 5. Statistics

    Find the mean of: 6, 4, 18, 16

    Answer: 11

Tuesday 8 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 1⁄6

    Answer: 29⁄30
  2. 2. Algebra

    Solve: 4x + 8 = 44

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio

    Divide 66 in the ratio 3:1:2

    Answer: 33, 11 and 22
  5. 5. Statistics

    Find the mean of: 13, 5, 17, 17

    Answer: 13

Wednesday 9 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 7x - 6 = 22

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio

    Divide 96 in the ratio 1:2:3

    Answer: 16, 32 and 48
  5. 5. Statistics

    Calculate the mean of: 35, 45, 26, 37, 21, 39. Give your answer to 2 decimal places

    Answer: 33.83

Thursday 10 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄11 + 4⁄11

    Answer: 7⁄11
  2. 2. Algebra

    Solve: 5x - 8 = 67

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 12.37cm
  4. 4. Ratio

    Divide 132 in the ratio 4:4:3

    Answer: 48, 48 and 36
  5. 5. Statistics

    Calculate the mean of: 14, 32, 23, 32, 29, 48, 35, 12. Give your answer to 2 decimal places

    Answer: 28.13

Friday 11 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 2⁄4

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 5x + 9 = 59

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Divide 189 in the ratio 3:1:3

    Answer: 81, 27 and 81
  5. 5. Statistics

    Find the mean of: 3, 4, 4, 19, 5

    Answer: 7