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Cornerstone Apr 26 - May 2 25 questions
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Monday 26 April 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄11 + 3⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 5x + 13 = 73

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Share 35 in the ratio 4:1

    Answer: 28 and 7
  5. 5. Statistics

    Calculate the mean of: 37, 32, 35, 7, 8, 42, 31

    Answer: 27.4

Tuesday 27 April 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄7 + 4⁄6

    Answer: 20⁄21
  2. 2. Algebra

    Solve: 6x - 12 = 54

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 4cm

    Answer: 12.65cm
  4. 4. Ratio

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics

    Find the mean of: 14, 13, 8

    Answer: 11.666666666667

Wednesday 28 April 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 2⁄4

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 8x - 17 = 47

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 11.4cm
  4. 4. Ratio

    Share 50 in the ratio 2:3

    Answer: 20 and 30
  5. 5. Statistics

    Find the mean of: 5, 13, 2

    Answer: 6.6666666666667

Thursday 29 April 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 4⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 2x + 5 = 27

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 36 in the ratio 1:2

    Answer: 12 and 24
  5. 5. Statistics

    Calculate the mean of: 13, 14, 35, 32, 5, 35

    Answer: 22.3

Friday 30 April 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄12 + 4⁄12

    Answer: 5⁄12
  2. 2. Algebra

    Solve: 5x + 10 = 60

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 12cm

    Answer: 16.28cm
  4. 4. Ratio

    Share 77 in the ratio 4:3

    Answer: 44 and 33
  5. 5. Statistics

    Calculate the mean of: 35, 9, 48, 49, 8, 28, 16, 13

    Answer: 25.8