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Cornerstone Jul 16 - 22 25 questions
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Monday 16 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 1⁄3

    Answer: 17⁄15
  2. 2. Algebra

    Solve: 7x + 15 = 50

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 112 in the ratio 4:3

    Answer: 64 and 48
  5. 5. Statistics

    Calculate the mean of: 38, 16, 11, 8, 9, 26, 43. Give your answer to 2 decimal places

    Answer: 21.57

Tuesday 17 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 14 = 91

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.3cm
  4. 4. Ratio

    Share 76 in the ratio 1:3

    Answer: 19 and 57
  5. 5. Statistics

    Find the mean of: 8, 17, 8

    Answer: 11

Wednesday 18 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 4⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: 3x - 18 = 27

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 16.28cm
  4. 4. Ratio

    Share 72 in the ratio 3:1

    Answer: 54 and 18
  5. 5. Statistics

    Find the mean of: 16, 9, 5

    Answer: 10

Thursday 19 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 1⁄5

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 3x + 14 = 23

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 24 in the ratio 2:1

    Answer: 16 and 8
  5. 5. Statistics

    Calculate the mean of: 32, 17, 11, 45, 16, 15. Give your answer to 2 decimal places

    Answer: 22.67

Friday 20 July 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 3⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 6x + 15 = 69

    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

    Share 36 in the ratio 3:1

    Answer: 27 and 9
  5. 5. Statistics

    Find the mean of: 7, 19, 21, 9

    Answer: 14