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Cornerstone Mar 26 - Apr 1 25 questions
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Monday 26 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 2⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 10 = 38

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.69cm
  4. 4. Ratio

    Share 20 in the ratio 1:3

    Answer: 5 and 15
  5. 5. Statistics

    Calculate the mean of: 40, 30, 13, 34, 35, 41, 26, 10. Give your answer to 2 decimal places

    Answer: 28.63

Tuesday 27 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 3⁄4

    Answer: 37⁄28
  2. 2. Algebra

    Solve: 5x - 18 = 27

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics

    Find the mean of: 17, 21, 13, 9

    Answer: 15

Wednesday 28 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 2⁄7

    Answer: 29⁄28
  2. 2. Algebra

    Solve: 8x - 8 = 96

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Share 85 in the ratio 2:3

    Answer: 34 and 51
  5. 5. Statistics

    Find the mean of: 12, 5, 1

    Answer: 6

Thursday 29 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 6x + 7 = 37

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 16.16cm
  4. 4. Ratio

    Share 56 in the ratio 3:4

    Answer: 24 and 32
  5. 5. Statistics

    Calculate the mean of: 45, 14, 20, 12, 38, 20, 30. Give your answer to 2 decimal places

    Answer: 25.57

Friday 30 March 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄10 + 5⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 6x + 15 = 75

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Share 114 in the ratio 1:2

    Answer: 38 and 76
  5. 5. Statistics

    Calculate the mean of: 34, 10, 26, 25, 28, 27, 27, 20. Give your answer to 2 decimal places

    Answer: 24.63