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Cornerstone Jun 1 - 7 25 questions
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Monday 1 June 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 3x - 13 = 26

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 9cm

    Answer: 12.04cm
  4. 4. Ratio

    Divide 128 in the ratio 2:1:1

    Answer: 64, 32 and 32
  5. 5. Statistics

    Calculate the mean of: 28, 17, 23, 30, 11, 48

    Answer: 26.2

Tuesday 2 June 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 6⁄7

    Answer: 25⁄21
  2. 2. Algebra

    Solve: 7x - 19 = 65

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Divide 40 in the ratio 1:1:2

    Answer: 10, 10 and 20
  5. 5. Statistics

    Calculate the mean of: 14, 19, 26, 45, 11, 35, 50, 45

    Answer: 30.6

Wednesday 3 June 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄10 + 4⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 7x + 14 = 77

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 10cm

    Answer: 13.45cm
  4. 4. Ratio

    Divide 150 in the ratio 2:3:1

    Answer: 50, 75 and 25
  5. 5. Statistics

    Find the mean of: 4, 11, 18, 10, 3

    Answer: 9.2

Thursday 4 June 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄11 + 1⁄11

    Answer: 7⁄11
  2. 2. Algebra

    Solve: 3x + 13 = 43

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 9cm

    Answer: 10.82cm
  4. 4. Ratio

    Share 30 in the ratio 1:4

    Answer: 6 and 24
  5. 5. Statistics

    Calculate the mean of: 28, 46, 19, 20, 23, 19

    Answer: 25.8

Friday 5 June 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 2⁄7

    Answer: 13⁄21
  2. 2. Algebra

    Solve: 5x - 13 = 27

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 45 in the ratio 2:1

    Answer: 30 and 15
  5. 5. Statistics

    Find the mean of: 12, 17, 10, 11, 5

    Answer: 11