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Cornerstone Apr 19 - 25 25 questions
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Monday 19 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 2⁄4

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 2x + 12 = 36

    Answer: x = 12
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Share 60 in the ratio 2:3

    Answer: 24 and 36
  5. 5. Statistics

    Find the mean of: 17, 8, 20

    Answer: 15

Tuesday 20 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 3x + 14 = 44

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics

    Calculate the mean of: 30, 32, 30, 49, 43, 43, 10. Give your answer to 2 decimal places

    Answer: 33.86

Wednesday 21 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 4⁄6

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x - 8 = 24

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 60 in the ratio 3:2

    Answer: 36 and 24
  5. 5. Statistics

    Find the mean of: 19, 6, 18, 9

    Answer: 13

Thursday 22 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄9 + 1⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 2x - 9 = 13

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Share 65 in the ratio 1:4

    Answer: 13 and 52
  5. 5. Statistics

    Find the mean of: 5, 13, 15

    Answer: 11

Friday 23 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 1⁄5

    Answer: 9⁄20
  2. 2. Algebra

    Solve: 3x + 7 = 16

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Share 114 in the ratio 2:1

    Answer: 76 and 38
  5. 5. Statistics

    Calculate the mean of: 29, 10, 16, 49, 22, 31. Give your answer to 2 decimal places

    Answer: 26.17