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Cornerstone Aug 19 - 25 25 questions
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Monday 19 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 2⁄7

    Answer: 11⁄14
  2. 2. Algebra

    Solve: 3x + 7 = 25

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics

    Calculate the mean of: 19, 30, 30, 39, 10, 9. Give your answer to 2 decimal places

    Answer: 22.83

Tuesday 20 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄11 + 6⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 4x + 6 = 34

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 19.21cm
  4. 4. Ratio

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics

    Find the mean of: 4, 4, 7

    Answer: 5

Wednesday 21 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 1⁄4

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 6x - 15 = 39

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.03cm
  4. 4. Ratio

    Share 60 in the ratio 3:1

    Answer: 45 and 15
  5. 5. Statistics

    Calculate the mean of: 24, 49, 10, 42, 10, 35. Give your answer to 2 decimal places

    Answer: 28.33

Thursday 22 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄9 + 2⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 6x - 14 = 10

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio

    Share 64 in the ratio 3:1

    Answer: 48 and 16
  5. 5. Statistics

    Calculate the mean of: 10, 46, 14, 43, 33, 22, 44, 45. Give your answer to 2 decimal places

    Answer: 32.13

Friday 23 August 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄7

    Answer: 17⁄21
  2. 2. Algebra

    Solve: 7x + 12 = 54

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Share 112 in the ratio 4:3

    Answer: 64 and 48
  5. 5. Statistics

    Find the mean of: 1, 9, 14

    Answer: 8