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Cornerstone Dec 9 - 15 25 questions
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Monday 9 December 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x + 3 = 33

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 91 in the ratio 4:3

    Answer: 52 and 39
  5. 5. Statistics

    Calculate the mean of: 41, 7, 11, 37, 35, 25

    Answer: 26

Tuesday 10 December 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄9 + 2⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 6x + 10 = 52

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 5cm

    Answer: 10.3cm
  4. 4. Ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics

    Calculate the mean of: 47, 28, 16, 35, 10, 36, 45

    Answer: 31

Wednesday 11 December 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 3⁄8

    Answer: 9⁄8
  2. 2. Algebra

    Solve: 4x - 6 = 46

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics

    Find the mean of: 12, 17, 14, 6

    Answer: 12.25

Thursday 12 December 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄9 + 2⁄9

    Answer: 1⁄3
  2. 2. Algebra

    Solve: 6x - 20 = 34

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 4cm

    Answer: 10.77cm
  4. 4. Ratio

    Share 33 in the ratio 1:2

    Answer: 11 and 22
  5. 5. Statistics

    Find the mean of: 11, 13, 11

    Answer: 11.666666666667

Friday 13 December 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 1⁄3

    Answer: 14⁄15
  2. 2. Algebra

    Solve: 5x + 14 = 69

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 13cm

    Answer: 13.93cm
  4. 4. Ratio

    Share 45 in the ratio 1:2

    Answer: 15 and 30
  5. 5. Statistics

    Calculate the mean of: 23, 39, 31, 8, 10, 38, 27, 49

    Answer: 28.1