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Cornerstone Nov 19 - 25 25 questions
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Monday 19 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄11 + 9⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 3x - 20 = 10

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 16.97cm
  4. 4. Ratio

    Share 100 in the ratio 4:1

    Answer: 80 and 20
  5. 5. Statistics

    Calculate the mean of: 25, 29, 11, 19, 16, 34, 31

    Answer: 23.6

Tuesday 20 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 5⁄8

    Answer: 23⁄24
  2. 2. Algebra

    Solve: 4x - 14 = 18

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Share 45 in the ratio 1:2

    Answer: 15 and 30
  5. 5. Statistics

    Find the mean of: 16, 5, 3

    Answer: 8

Wednesday 21 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 4⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 3x + 10 = 37

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 14cm

    Answer: 16.12cm
  4. 4. Ratio

    Share 28 in the ratio 1:3

    Answer: 7 and 21
  5. 5. Statistics

    Calculate the mean of: 25, 34, 35, 29, 8, 28, 6, 30

    Answer: 24.4

Thursday 22 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 7⁄8

    Answer: 37⁄24
  2. 2. Algebra

    Solve: 5x + 4 = 34

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 76 in the ratio 1:3

    Answer: 19 and 57
  5. 5. Statistics

    Calculate the mean of: 18, 38, 34, 14, 27, 29

    Answer: 26.7

Friday 23 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 2x - 14 = 2

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 7cm

    Answer: 11.4cm
  4. 4. Ratio

    Share 78 in the ratio 2:1

    Answer: 52 and 26
  5. 5. Statistics

    Find the mean of: 5, 11, 10, 12, 14

    Answer: 10.4