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Cornerstone Jun 21 - 27 25 questions
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Monday 21 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 4⁄8

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 6x + 4 = 76

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio

    Share 98 in the ratio 4:3

    Answer: 56 and 42
  5. 5. Statistics

    Find the mean of: 16, 9, 20

    Answer: 15

Tuesday 22 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄10 + 1⁄10

    Answer: 1⁄5
  2. 2. Algebra

    Solve: 6x + 5 = 23

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Share 60 in the ratio 1:2

    Answer: 20 and 40
  5. 5. Statistics

    Find the mean of: 4, 23, 12, 15, 16

    Answer: 14

Wednesday 23 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 4⁄8

    Answer: 19⁄14
  2. 2. Algebra

    Solve: 2x - 11 = -1

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 4cm

    Answer: 5cm
  4. 4. Ratio

    Share 39 in the ratio 2:1

    Answer: 26 and 13
  5. 5. Statistics

    Calculate the mean of: 32, 48, 21, 20, 12, 20

    Answer: 25.5

Thursday 24 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 6⁄8

    Answer: 5⁄4
  2. 2. Algebra

    Solve: 4x - 14 = 22

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 11.31cm
  4. 4. Ratio

    Divide 75 in the ratio 1:3:1

    Answer: 15, 45 and 15
  5. 5. Statistics

    Find the mean of: 4, 3, 11

    Answer: 6

Friday 25 June 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 2⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 3x + 5 = 41

    Answer: x = 12
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 105 in the ratio 1:4:2

    Answer: 15, 60 and 30
  5. 5. Statistics

    Calculate the mean of: 21, 32, 22, 9, 47, 21, 19, 19

    Answer: 23.75