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Cornerstone Nov 8 - 14 25 questions
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Monday 8 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 2⁄3

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 4x + 9 = 33

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.3cm
  4. 4. Ratio

    Divide 225 in the ratio 2:4:3

    Answer: 50, 100 and 75
  5. 5. Statistics

    Find the mean of: 11, 16, 22, 3

    Answer: 13

Tuesday 9 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 10 = 46

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Divide 117 in the ratio 2:4:3

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

    Calculate the mean of: 48, 50, 35, 15, 20, 33, 25, 24

    Answer: 31.25

Wednesday 10 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 2⁄8

    Answer: 3⁄8
  2. 2. Algebra

    Solve: 6x - 12 = 36

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.44cm
  4. 4. Ratio

    Divide 147 in the ratio 2:3:2

    Answer: 42, 63 and 42
  5. 5. Statistics

    Calculate the mean of: 24, 42, 23, 36, 27, 32. Give your answer to 2 decimal places

    Answer: 30.67

Thursday 11 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 6x + 6 = 66

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Divide 230 in the ratio 3:4:3

    Answer: 69, 92 and 69
  5. 5. Statistics

    Find the mean of: 11, 20, 16, 12, 16

    Answer: 15

Friday 12 November 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x + 6 = 36

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio

    Divide 174 in the ratio 1:3:2

    Answer: 29, 87 and 58
  5. 5. Statistics

    Find the mean of: 4, 20, 15, 16, 20

    Answer: 15