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Cornerstone Apr 30 - May 6 25 questions
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Monday 30 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 3⁄4

    Answer: 5⁄4
  2. 2. Algebra

    Solve: 2x - 20 = 10

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 40 in the ratio 3:2

    Answer: 24 and 16
  5. 5. Statistics

    Find the mean of: 23, 15, 17, 4, 16

    Answer: 15

Tuesday 1 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 2⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 2x + 13 = 33

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio

    Share 50 in the ratio 1:4

    Answer: 10 and 40
  5. 5. Statistics

    Find the mean of: 9, 11, 16, 3, 1

    Answer: 8

Wednesday 2 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 4⁄8

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x + 7 = 28

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics

    Find the mean of: 5, 10, 12

    Answer: 9

Thursday 3 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄11 + 3⁄11

    Answer: 7⁄11
  2. 2. Algebra

    Solve: 8x - 19 = 77

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio

    Share 45 in the ratio 2:1

    Answer: 30 and 15
  5. 5. Statistics

    Calculate the mean of: 36, 50, 33, 5, 38, 49, 5. Give your answer to 2 decimal places

    Answer: 30.86

Friday 4 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 8x - 10 = 110

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 15.56cm
  4. 4. Ratio

    Divide 168 in the ratio 1:4:2

    Answer: 24, 96 and 48
  5. 5. Statistics

    Find the mean of: 18, 13, 19, 4, 1

    Answer: 11