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Cornerstone Mar 25 - 31 25 questions
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Monday 25 March 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 4x + 13 = 45

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 72 in the ratio 2:1

    Answer: 48 and 24
  5. 5. Statistics

    Calculate the mean of: 40, 14, 23, 45, 31, 19, 5. Give your answer to 2 decimal places

    Answer: 25.29

Tuesday 26 March 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 1⁄6

    Answer: 25⁄24
  2. 2. Algebra

    Solve: 7x + 8 = 36

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio

    Share 42 in the ratio 3:4

    Answer: 18 and 24
  5. 5. Statistics

    Calculate the mean of: 14, 46, 19, 10, 8, 50

    Answer: 24.5

Wednesday 27 March 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 4⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 2x - 20 = -2

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Share 68 in the ratio 3:1

    Answer: 51 and 17
  5. 5. Statistics

    Find the mean of: 13, 11, 5, 19

    Answer: 12

Thursday 28 March 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 5x - 20 = 30

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 80 in the ratio 3:1

    Answer: 60 and 20
  5. 5. Statistics

    Find the mean of: 19, 18, 7, 4

    Answer: 12

Friday 29 March 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 3⁄6

    Answer: 13⁄10
  2. 2. Algebra

    Solve: 4x + 12 = 44

    Answer: x = 8
  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 126 in the ratio 3:4

    Answer: 54 and 72
  5. 5. Statistics

    Calculate the mean of: 36, 26, 40, 6, 26, 10, 6, 33. Give your answer to 2 decimal places

    Answer: 22.88