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Cornerstone Oct 10 - 16 25 questions
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Monday 10 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 4⁄5

    Answer: 17⁄15
  2. 2. Algebra

    Solve: 3x + 13 = 22

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.81cm
  4. 4. Ratio

    Share 40 in the ratio 3:2

    Answer: 24 and 16
  5. 5. Statistics

    Calculate the mean of: 20, 31, 31, 27, 8, 25. Give your answer to 2 decimal places

    Answer: 23.67

Tuesday 11 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄10 + 1⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 19 = 9

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 65 in the ratio 2:3

    Answer: 26 and 39
  5. 5. Statistics

    Find the mean of: 10, 4, 4

    Answer: 6

Wednesday 12 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 2⁄7

    Answer: 19⁄42
  2. 2. Algebra

    Solve: 7x - 13 = 57

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 14.42cm
  4. 4. Ratio

    Share 105 in the ratio 4:3

    Answer: 60 and 45
  5. 5. Statistics

    Find the mean of: 10, 24, 13, 8, 10

    Answer: 13

Thursday 13 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 7x + 9 = 51

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 90 in the ratio 3:2

    Answer: 54 and 36
  5. 5. Statistics

    Calculate the mean of: 27, 20, 19, 33, 29, 37, 42, 11

    Answer: 27.25

Friday 14 October 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄10 + 2⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 5x + 10 = 25

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 52 in the ratio 2:1:1

    Answer: 26, 13 and 13
  5. 5. Statistics

    Find the mean of: 10, 6, 5

    Answer: 7