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Cornerstone Feb 3 - 9 25 questions
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Monday 3 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 5x - 8 = 47

    Answer: x = 11
  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 78 in the ratio 1:2

    Answer: 26 and 52
  5. 5. Statistics

    Find the mean of: 6, 5, 7, 6

    Answer: 6

Tuesday 4 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄12 + 5⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x - 10 = 14

    Answer: x = 6
  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 126 in the ratio 3:1:3

    Answer: 54, 18 and 54
  5. 5. Statistics

    Calculate the mean of: 27, 25, 39, 41, 33, 47, 49. Give your answer to 2 decimal places

    Answer: 37.29

Wednesday 5 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 5⁄7

    Answer: 17⁄14
  2. 2. Algebra

    Solve: 4x + 10 = 22

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 112 in the ratio 3:2:2

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

    Find the mean of: 4, 8, 12

    Answer: 8

Thursday 6 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄12 + 6⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 4x + 14 = 46

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio

    Divide 70 in the ratio 2:4:1

    Answer: 20, 40 and 10
  5. 5. Statistics

    Find the mean of: 2, 11, 14

    Answer: 9

Friday 7 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 1⁄5

    Answer: 9⁄20
  2. 2. Algebra

    Solve: 5x - 7 = 23

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Divide 300 in the ratio 1:2:2

    Answer: 60, 120 and 120
  5. 5. Statistics

    Calculate the mean of: 33, 26, 40, 15, 17, 32, 39, 19. Give your answer to 2 decimal places

    Answer: 27.63