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Cornerstone Nov 28 - Dec 4 25 questions
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Monday 28 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 1⁄5

    Answer: 37⁄35
  2. 2. Algebra

    Solve: 5x + 5 = 40

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Divide 96 in the ratio 4:1:3

    Answer: 48, 12 and 36
  5. 5. Statistics

    Calculate the mean of: 16, 39, 38, 13, 46, 11, 6, 31

    Answer: 25

Tuesday 29 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 2x - 11 = 1

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 182 in the ratio 2:4:1

    Answer: 52, 104 and 26
  5. 5. Statistics

    Find the mean of: 3, 17, 19

    Answer: 13

Wednesday 30 November 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 7x - 11 = 31

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 13.6cm
  4. 4. Ratio

    Divide 189 in the ratio 1:2:4

    Answer: 27, 54 and 108
  5. 5. Statistics

    Find the mean of: 15, 16, 18, 7

    Answer: 14

Thursday 1 December 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄7 + 5⁄6

    Answer: 41⁄42
  2. 2. Algebra

    Solve: 4x - 12 = 48

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.23cm
  4. 4. Ratio

    Divide 175 in the ratio 1:4:2

    Answer: 25, 100 and 50
  5. 5. Statistics

    Find the mean of: 9, 6, 20, 13

    Answer: 12

Friday 2 December 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄10 + 2⁄10

    Answer: 3⁄10
  2. 2. Algebra

    Solve: 3x - 5 = 37

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 152 in the ratio 3:2:3

    Answer: 57, 38 and 57
  5. 5. Statistics

    Find the mean of: 13, 15, 15, 9

    Answer: 13