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Cornerstone Jul 25 - 31 25 questions
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Monday 25 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 4⁄5

    Answer: 48⁄35
  2. 2. Algebra

    Solve: 4x + 14 = 50

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 40 in the ratio 1:4

    Answer: 8 and 32
  5. 5. Statistics

    Calculate the mean of: 49, 33, 27, 26, 46, 15, 35

    Answer: 33

Tuesday 26 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄11 + 6⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 5x + 14 = 34

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 9cm

    Answer: 15cm
  4. 4. Ratio

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics

    Calculate the mean of: 30, 35, 41, 28, 46, 46, 27, 19

    Answer: 34

Wednesday 27 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 5⁄6

    Answer: 31⁄30
  2. 2. Algebra

    Solve: 2x - 15 = 11

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Find the mean of: 15, 4, 8

    Answer: 9

Thursday 28 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 1⁄4

    Answer: 5⁄12
  2. 2. Algebra

    Solve: 4x - 9 = 27

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 80 in the ratio 1:3

    Answer: 20 and 60
  5. 5. Statistics

    Find the mean of: 3, 11, 22

    Answer: 12

Friday 29 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄11 + 7⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 5x + 15 = 50

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 6.71cm
  4. 4. Ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics

    Calculate the mean of: 5, 35, 24, 30, 49, 13, 48, 30

    Answer: 29.25