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Cornerstone Mar 28 - Apr 3 25 questions
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Monday 28 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 5x + 10 = 70

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.54cm
  4. 4. Ratio

    Divide 144 in the ratio 4:1:4

    Answer: 64, 16 and 64
  5. 5. Statistics

    Calculate the mean of: 34, 46, 14, 40, 31, 38. Give your answer to 2 decimal places

    Answer: 33.83

Tuesday 29 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 2⁄4

    Answer: 19⁄14
  2. 2. Algebra

    Solve: 5x - 12 = 58

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Divide 168 in the ratio 4:1:2

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

    Find the mean of: 10, 13, 17, 12

    Answer: 13

Wednesday 30 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 1⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 2x - 11 = -3

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 9.49cm
  4. 4. Ratio

    Divide 140 in the ratio 2:4:1

    Answer: 40, 80 and 20
  5. 5. Statistics

    Find the mean of: 9, 19, 8, 4

    Answer: 10

Thursday 31 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 5x + 12 = 27

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Divide 175 in the ratio 4:2:1

    Answer: 100, 50 and 25
  5. 5. Statistics

    Calculate the mean of: 5, 20, 49, 36, 5, 35

    Answer: 25

Friday 1 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄8 + 1⁄5

    Answer: 19⁄20
  2. 2. Algebra

    Solve: 6x + 7 = 61

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Share 45 in the ratio 3:2

    Answer: 27 and 18
  5. 5. Statistics

    Calculate the mean of: 43, 14, 43, 25, 43, 8, 39. Give your answer to 2 decimal places

    Answer: 30.71