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Cornerstone Jun 27 - Jul 3 25 questions
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Monday 27 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄10 + 4⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 2x + 8 = 22

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 10cm

    Answer: 12.81cm
  4. 4. Ratio

    Divide 108 in the ratio 1:2:1

    Answer: 27, 54 and 27
  5. 5. Statistics

    Calculate the mean of: 8, 43, 7, 26, 47, 49, 37, 10

    Answer: 28.4

Tuesday 28 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 2⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 5x + 8 = 43

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 14.14cm
  4. 4. Ratio

    Divide 168 in the ratio 3:3:1

    Answer: 72, 72 and 24
  5. 5. Statistics

    Calculate the mean of: 44, 48, 31, 11, 44, 14, 24, 16

    Answer: 29

Wednesday 29 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 3⁄5

    Answer: 51⁄35
  2. 2. Algebra

    Solve: 4x - 8 = 36

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 330 in the ratio 4:3:4

    Answer: 120, 90 and 120
  5. 5. Statistics

    Find the mean of: 2, 13, 10, 8

    Answer: 8.25

Thursday 30 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 2⁄3

    Answer: 13⁄15
  2. 2. Algebra

    Solve: 6x - 6 = 78

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 5cm

    Answer: 7.81cm
  4. 4. Ratio

    Divide 55 in the ratio 3:1:1

    Answer: 33, 11 and 11
  5. 5. Statistics

    Find the mean of: 6, 6, 4

    Answer: 5.3333333333333

Friday 1 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 3x + 14 = 32

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 120 in the ratio 1:3:1

    Answer: 24, 72 and 24
  5. 5. Statistics

    Find the mean of: 16, 9, 19, 19, 4

    Answer: 13.4