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Cornerstone Jun 10 - 16 25 questions
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Monday 10 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄4

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 7x + 11 = 53

    Answer: x = 6
  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 55 in the ratio 2:3

    Answer: 22 and 33
  5. 5. Statistics

    Calculate the mean of: 49, 50, 16, 22, 41, 31, 35. Give your answer to 2 decimal places

    Answer: 34.86

Tuesday 11 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄11 + 3⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 6x - 18 = 54

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Share 78 in the ratio 2:1

    Answer: 52 and 26
  5. 5. Statistics

    Find the mean of: 4, 19, 18, 19

    Answer: 15

Wednesday 12 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 6x - 11 = 61

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 13.6cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Find the mean of: 17, 14, 3, 19, 12

    Answer: 13

Thursday 13 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄10 + 1⁄10

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 5x + 15 = 75

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 30 in the ratio 3:2

    Answer: 18 and 12
  5. 5. Statistics

    Calculate the mean of: 45, 46, 33, 28, 33, 26. Give your answer to 2 decimal places

    Answer: 35.17

Friday 14 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 1⁄8

    Answer: 1⁄4
  2. 2. Algebra

    Solve: 4x + 11 = 47

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 187 in the ratio 3:4:4

    Answer: 51, 68 and 68
  5. 5. Statistics

    Find the mean of: 22, 8, 3, 11

    Answer: 11