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Cornerstone Sep 17 - 23 25 questions
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Monday 17 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 5⁄7

    Answer: 32⁄35
  2. 2. Algebra

    Solve: 6x + 5 = 47

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 6.4cm
  4. 4. Ratio

    Divide 198 in the ratio 2:4:3

    Answer: 44, 88 and 66
  5. 5. Statistics

    Find the mean of: 10, 14, 3

    Answer: 9

Tuesday 18 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 3⁄6

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 5x + 13 = 38

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.56cm
  4. 4. Ratio

    Divide 132 in the ratio 2:3:1

    Answer: 44, 66 and 22
  5. 5. Statistics

    Find the mean of: 4, 6, 6, 24

    Answer: 10

Wednesday 19 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄12 + 2⁄12

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 3x - 14 = 22

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Divide 120 in the ratio 3:3:4

    Answer: 36, 36 and 48
  5. 5. Statistics

    Calculate the mean of: 23, 29, 26, 22, 28, 21, 25, 23. Give your answer to 2 decimal places

    Answer: 24.63

Thursday 20 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 2⁄3

    Answer: 32⁄21
  2. 2. Algebra

    Solve: 5x - 17 = 3

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio

    Divide 80 in the ratio 3:1:4

    Answer: 30, 10 and 40
  5. 5. Statistics

    Find the mean of: 15, 9, 18

    Answer: 14

Friday 21 September 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 3⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 5x + 8 = 33

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 135 in the ratio 1:1:3

    Answer: 27, 27 and 81
  5. 5. Statistics

    Calculate the mean of: 50, 34, 46, 42, 48, 30. Give your answer to 2 decimal places

    Answer: 41.67