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Cornerstone Jan 1 - 7 25 questions
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Monday 6 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄12 + 5⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Collect like terms: 8x + 7y + 8x + 7y

    Answer: 16x + 14y
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Simplify the ratio 40:35

    Answer: 8:7
  5. 5. Statistics

    Calculate the mean of: 24, 30, 9, 13, 38, 20, 23, 18

    Answer: 21.9

Tuesday 7 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 94 + ? = 122

    Answer: 28
  2. 2. Algebra

    Simplify: 8x + 6x

    Answer: 14x
  3. 3. Geometry

    Opposite = 12cm, adjacent = 13cm. Calculate the angle

    Answer: 42.7°
  4. 4. Ratio

    Calculate 25% of 132

    Answer: 33
  5. 5. Statistics

    Find the range of: 43, 35, 34, 20, 17

    Answer: 26

Wednesday 8 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 45 + ? = 122

    Answer: 77
  2. 2. Algebra

    Find the next term: 13, 22, 31, 40, ...

    Answer: 49
  3. 3. Geometry

    Opposite = 13cm, adjacent = 12cm. Calculate the angle

    Answer: 47.3°
  4. 4. Ratio

    Simplify the ratio 10:20

    Answer: 1:2
  5. 5. Statistics

    Find the mean of: 9, 20, 13

    Answer: 14

Thursday 9 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 77 + 51

    Answer: 77 + 51 = 128
  2. 2. Algebra

    Solve: 8x = 48

    Answer: x = 6
  3. 3. Geometry

    Opposite = 12cm, hypotenuse = 17cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Simplify the ratio 10:8

    Answer: 5:4
  5. 5. Statistics

    Calculate the range of: 26, 26, 25, 91, 65, 43

    Answer: 66

Friday 10 June 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 64 + 21

    Answer: 64 + 21 = 85
  2. 2. Algebra

    Factorise: 2x² + 7x

    Answer: x(2x + 7)
  3. 3. Geometry

    Calculate the distance between (6, 3) and (9, 7)

    Answer: 5
  4. 4. Ratio

    Calculate 10% of 57

    Answer: 5.7
  5. 5. Statistics

    Calculate the mean of: 24, 8, 6, 39, 44, 6, 7

    Answer: 19.1