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Cornerstone Aug 16 - 22 25 questions
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Monday 16 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 4⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 11 = 23

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.52cm
  4. 4. Ratio

    Divide 120 in the ratio 2:2:1

    Answer: 48, 48 and 24
  5. 5. Statistics

    Find the mean of: 17, 10, 8, 3, 2

    Answer: 8

Tuesday 17 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 5⁄8

    Answer: 57⁄40
  2. 2. Algebra

    Solve: 6x - 7 = 77

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 144 in the ratio 3:1:4

    Answer: 54, 18 and 72
  5. 5. Statistics

    Calculate the mean of: 44, 17, 9, 47, 48, 17, 47. Give your answer to 2 decimal places

    Answer: 32.71

Wednesday 18 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 1⁄3

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x - 15 = 60

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Divide 176 in the ratio 4:3:1

    Answer: 88, 66 and 22
  5. 5. Statistics

    Calculate the mean of: 32, 33, 25, 30, 30, 15, 49, 42

    Answer: 32

Thursday 19 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 4x + 8 = 20

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 11.66cm
  4. 4. Ratio

    Divide 80 in the ratio 3:1:4

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

    Find the mean of: 5, 20, 3, 18, 14

    Answer: 12

Friday 20 August 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 1⁄4

    Answer: 21⁄20
  2. 2. Algebra

    Solve: 3x + 13 = 40

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 189 in the ratio 2:2:3

    Answer: 54, 54 and 81
  5. 5. Statistics

    Calculate the mean of: 26, 18, 13, 24, 43, 26

    Answer: 25