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Cornerstone Jan 1 - 7 25 questions
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Monday 25 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 56 + 95

    Answer: 56 + 95 = 151
  2. 2. Algebra

    Simplify: 7x + 8x

    Answer: 15x
  3. 3. Geometry

    Opposite = 18cm, adjacent = 15cm. Calculate the angle

    Answer: 50.2°
  4. 4. Ratio

    Simplify: 8:12:12

    Answer: 2:3:3
  5. 5. Statistics

    Find the mean of: 2, 19, 8

    Answer: 9.6666666666667

Tuesday 26 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 370 + 990

    Answer: 370 + 990 = 1360
  2. 2. Algebra

    Factorise: 35x + 10

    Answer: 5(7x + 2)
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 10.4cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Find 29% of 332

    Answer: 96.28
  5. 5. Statistics

    Find the range of: 8, 6, 8, 26, 20

    Answer: 20

Wednesday 27 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 25 + 52

    Answer: 25 + 52 = 77
  2. 2. Algebra

    Solve: 6x = 78

    Answer: x = 13
  3. 3. Geometry

    Opposite = 9cm, adjacent = 20cm. Calculate the angle

    Answer: 24.2°
  4. 4. Ratio

    Simplify: 12:6:12

    Answer: 2:1:2
  5. 5. Statistics

    Calculate the mean of: 31, 50, 43, 10, 50, 41

    Answer: 37.5

Thursday 28 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 35 + 89

    Answer: 35 + 89 = 124
  2. 2. Algebra

    Solve: 4x = 60

    Answer: x = 15
  3. 3. Geometry

    Opposite = 17cm, adjacent = 10cm. Calculate the angle

    Answer: 59.5°
  4. 4. Ratio

    Simplify: 6:15:18

    Answer: 2:5:6
  5. 5. Statistics

    Calculate the mean of: 12, 40, 13, 43, 48, 40, 22, 14

    Answer: 29

Friday 29 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    360000

    Answer: 3.6 × 105
  2. 2. Algebra

    Solve: x + 12 = 24

    Answer: x = 12
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 15cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Find 33% of 187

    Answer: 61.71
  5. 5. Statistics

    Find the range of: 30, 31, 19, 10, 28

    Answer: 21