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Cornerstone Apr 11 - 17 25 questions
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Monday 11 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄10 + 3⁄10

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 3x + 3 = 18

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 234 in the ratio 3:4:2

    Answer: 78, 104 and 52
  5. 5. Statistics

    Calculate the mean of: 13, 24, 28, 22, 48, 18

    Answer: 25.5

Tuesday 12 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄7

    Answer: 29⁄21
  2. 2. Algebra

    Solve: 5x + 11 = 36

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 16.97cm
  4. 4. Ratio

    Divide 162 in the ratio 3:1:2

    Answer: 81, 27 and 54
  5. 5. Statistics

    Calculate the mean of: 48, 10, 46, 45, 14, 27, 38, 40

    Answer: 33.5

Wednesday 13 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 2⁄9

    Answer: 5⁄9
  2. 2. Algebra

    Solve: 4x - 15 = 25

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Divide 133 in the ratio 2:1:4

    Answer: 38, 19 and 76
  5. 5. Statistics

    Find the mean of: 16, 10, 12, 18

    Answer: 14

Thursday 14 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 8x - 15 = 17

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 44 in the ratio 3:1

    Answer: 33 and 11
  5. 5. Statistics

    Calculate the mean of: 9, 17, 28, 43, 14, 45, 39. Give your answer to 2 decimal places

    Answer: 27.86

Friday 15 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 1⁄7

    Answer: 11⁄28
  2. 2. Algebra

    Solve: 4x + 3 = 39

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 66 in the ratio 2:1

    Answer: 44 and 22
  5. 5. Statistics

    Find the mean of: 4, 3, 8, 13, 2

    Answer: 6