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Cornerstone May 13 - 19 25 questions
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Monday 13 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄11 + 4⁄11

    Answer: 7⁄11
  2. 2. Algebra

    Solve: 6x + 11 = 59

    Answer: x = 8
  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

    Divide 72 in the ratio 1:4:1

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

    Calculate the mean of: 8, 5, 9, 26, 7, 30, 34

    Answer: 17

Tuesday 14 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 4x + 10 = 34

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 13.93cm
  4. 4. Ratio

    Share 70 in the ratio 3:4

    Answer: 30 and 40
  5. 5. Statistics

    Find the mean of: 5, 2, 8, 13

    Answer: 7

Wednesday 15 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 1⁄7

    Answer: 43⁄56
  2. 2. Algebra

    Solve: 3x - 11 = 13

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 90 in the ratio 2:1

    Answer: 60 and 30
  5. 5. Statistics

    Calculate the mean of: 9, 14, 49, 11, 32, 22, 21. Give your answer to 2 decimal places

    Answer: 22.57

Thursday 16 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 5x - 12 = 28

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 30 in the ratio 2:3

    Answer: 12 and 18
  5. 5. Statistics

    Calculate the mean of: 50, 21, 50, 48, 18, 23, 43. Give your answer to 2 decimal places

    Answer: 36.14

Friday 17 May 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 1⁄3

    Answer: 13⁄12
  2. 2. Algebra

    Solve: 7x + 3 = 24

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 114 in the ratio 2:1

    Answer: 76 and 38
  5. 5. Statistics

    Find the mean of: 14, 8, 12, 14

    Answer: 12