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Cornerstone Aug 13 - 19 25 questions
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Monday 13 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 4⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x - 8 = 48

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Divide 174 in the ratio 4:1:1

    Answer: 116, 29 and 29
  5. 5. Statistics

    Calculate the mean of: 12, 11, 19, 32, 43, 10, 50. Give your answer to 2 decimal places

    Answer: 25.29

Tuesday 14 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄9 + 2⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 4x - 9 = 35

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 90 in the ratio 3:2

    Answer: 54 and 36
  5. 5. Statistics

    Find the mean of: 7, 1, 16

    Answer: 8

Wednesday 15 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 4⁄8

    Answer: 11⁄10
  2. 2. Algebra

    Solve: 2x + 12 = 24

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.69cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Calculate the mean of: 40, 45, 46, 6, 6, 30, 31, 37. Give your answer to 2 decimal places

    Answer: 30.13

Thursday 16 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x + 6 = 18

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 20 in the ratio 3:1

    Answer: 15 and 5
  5. 5. Statistics

    Calculate the mean of: 18, 25, 47, 15, 21, 49, 44. Give your answer to 2 decimal places

    Answer: 31.29

Friday 17 August 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄7

    Answer: 23⁄21
  2. 2. Algebra

    Solve: 7x - 17 = 53

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 12.08cm
  4. 4. Ratio

    Share 65 in the ratio 2:3

    Answer: 26 and 39
  5. 5. Statistics

    Find the mean of: 6, 1, 20

    Answer: 9