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Cornerstone Jun 13 - 19 25 questions
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Monday 13 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 2⁄8

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 8x - 8 = 80

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Divide 84 in the ratio 2:3:1

    Answer: 28, 42 and 14
  5. 5. Statistics

    Calculate the mean of: 25, 48, 5, 44, 36, 11

    Answer: 28.2

Tuesday 14 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 3⁄8

    Answer: 53⁄56
  2. 2. Algebra

    Solve: 2x - 17 = 5

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 44 in the ratio 1:3

    Answer: 11 and 33
  5. 5. Statistics

    Find the mean of: 15, 3, 16, 10

    Answer: 11

Wednesday 15 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 3⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 5x + 5 = 40

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 11cm

    Answer: 11.4cm
  4. 4. Ratio

    Share 84 in the ratio 3:4

    Answer: 36 and 48
  5. 5. Statistics

    Calculate the mean of: 14, 16, 8, 32, 33, 11

    Answer: 19

Thursday 16 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 2⁄3

    Answer: 22⁄15
  2. 2. Algebra

    Solve: 5x + 7 = 27

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Calculate the mean of: 39, 6, 44, 37, 15, 50

    Answer: 31.8

Friday 17 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 6x - 20 = 10

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 13cm

    Answer: 14.76cm
  4. 4. Ratio

    Share 65 in the ratio 4:1

    Answer: 52 and 13
  5. 5. Statistics

    Find the mean of: 15, 2, 18, 19, 10

    Answer: 12.8