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Cornerstone Apr 8 - 14 25 questions
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Monday 8 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄9 + 1⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 3x + 11 = 38

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 27 in the ratio 2:1

    Answer: 18 and 9
  5. 5. Statistics

    Find the mean of: 17, 5, 17, 17

    Answer: 14

Tuesday 9 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 4⁄8

    Answer: 11⁄10
  2. 2. Algebra

    Solve: 5x - 20 = 15

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio

    Share 57 in the ratio 1:2

    Answer: 19 and 38
  5. 5. Statistics

    Calculate the mean of: 9, 20, 23, 34, 25, 15, 46. Give your answer to 2 decimal places

    Answer: 24.57

Wednesday 10 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 2⁄6

    Answer: 13⁄12
  2. 2. Algebra

    Solve: 8x - 8 = 72

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 84 in the ratio 4:3

    Answer: 48 and 36
  5. 5. Statistics

    Calculate the mean of: 39, 43, 24, 6, 19, 15, 50

    Answer: 28

Thursday 11 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 6x + 4 = 22

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 11.66cm
  4. 4. Ratio

    Share 72 in the ratio 2:1

    Answer: 48 and 24
  5. 5. Statistics

    Find the mean of: 2, 13, 19, 6

    Answer: 10

Friday 12 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 1⁄5

    Answer: 27⁄35
  2. 2. Algebra

    Solve: 5x + 8 = 33

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Find the mean of: 14, 13, 15, 16, 17

    Answer: 15