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Cornerstone Oct 1 - 7 25 questions
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Monday 1 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 3⁄4

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 4x - 11 = 13

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 12cm

    Answer: 12.37cm
  4. 4. Ratio

    Divide 126 in the ratio 2:1:4

    Answer: 36, 18 and 72
  5. 5. Statistics

    Find the mean of: 11, 19, 10, 11

    Answer: 12.75

Tuesday 2 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 3x - 5 = 31

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Divide 96 in the ratio 3:2:3

    Answer: 36, 24 and 36
  5. 5. Statistics

    Find the mean of: 7, 6, 20

    Answer: 11

Wednesday 3 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 1⁄3

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 6x + 10 = 82

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 7cm

    Answer: 9.22cm
  4. 4. Ratio

    Divide 96 in the ratio 2:1:1

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

    Calculate the mean of: 19, 32, 48, 47, 35, 19, 6, 35

    Answer: 30.1

Thursday 4 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 2⁄3

    Answer: 26⁄21
  2. 2. Algebra

    Solve: 6x + 4 = 52

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 7cm

    Answer: 8.06cm
  4. 4. Ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics

    Find the mean of: 5, 13, 17, 6

    Answer: 10.25

Friday 5 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 8x - 16 = 96

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Share 45 in the ratio 3:2

    Answer: 27 and 18
  5. 5. Statistics

    Calculate the mean of: 33, 11, 7, 50, 7, 27

    Answer: 22.5