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Cornerstone Apr 4 - 10 25 questions
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Monday 4 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 4⁄6

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 7x + 9 = 30

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 232 in the ratio 1:1:2

    Answer: 58, 58 and 116
  5. 5. Statistics

    Calculate the mean of: 43, 34, 48, 12, 11, 22. Give your answer to 2 decimal places

    Answer: 28.33

Tuesday 5 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄9 + 1⁄9

    Answer: 2⁄9
  2. 2. Algebra

    Solve: 3x - 20 = 10

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio

    Divide 125 in the ratio 1:3:1

    Answer: 25, 75 and 25
  5. 5. Statistics

    Find the mean of: 16, 6, 11

    Answer: 11

Wednesday 6 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄7 + 2⁄4

    Answer: 17⁄14
  2. 2. Algebra

    Solve: 7x - 5 = 44

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Divide 242 in the ratio 3:4:4

    Answer: 66, 88 and 88
  5. 5. Statistics

    Find the mean of: 8, 3, 5, 12

    Answer: 7

Thursday 7 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄9 + 1⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 7x + 5 = 75

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Divide 108 in the ratio 1:4:1

    Answer: 18, 72 and 18
  5. 5. Statistics

    Calculate the mean of: 12, 50, 50, 27, 47, 23. Give your answer to 2 decimal places

    Answer: 34.83

Friday 8 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄12 + 7⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 2x + 4 = 22

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 7.81cm
  4. 4. Ratio

    Divide 96 in the ratio 2:3:1

    Answer: 32, 48 and 16
  5. 5. Statistics

    Calculate the mean of: 29, 8, 46, 50, 12, 45. Give your answer to 2 decimal places

    Answer: 31.67