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Cornerstone Feb 13 - 19 25 questions
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Monday 13 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 4x - 5 = 23

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Divide 261 in the ratio 4:2:3

    Answer: 116, 58 and 87
  5. 5. Statistics

    Find the mean of: 2, 11, 18, 15, 14

    Answer: 12

Tuesday 14 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄10 + 5⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 8x - 11 = 21

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 12.08cm
  4. 4. Ratio

    Share 18 in the ratio 2:1

    Answer: 12 and 6
  5. 5. Statistics

    Calculate the mean of: 44, 22, 42, 50, 42, 41, 23, 5. Give your answer to 2 decimal places

    Answer: 33.63

Wednesday 15 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 3⁄6

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 7x + 7 = 42

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 45 in the ratio 2:1

    Answer: 30 and 15
  5. 5. Statistics

    Find the mean of: 13, 20, 9, 6

    Answer: 12

Thursday 16 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄10 + 1⁄10

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 2x + 14 = 26

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 5cm

    Answer: 13cm
  4. 4. Ratio

    Share 68 in the ratio 1:3

    Answer: 17 and 51
  5. 5. Statistics

    Find the mean of: 3, 14, 19, 7, 17

    Answer: 12

Friday 17 February 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 3⁄7

    Answer: 19⁄28
  2. 2. Algebra

    Solve: 8x - 20 = 60

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Share 56 in the ratio 3:1

    Answer: 42 and 14
  5. 5. Statistics

    Calculate the mean of: 48, 10, 17, 36, 26, 19, 45. Give your answer to 2 decimal places

    Answer: 28.71