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Cornerstone Jan 1 - 7 25 questions
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Monday 5 August 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 23 + 18

    Answer: 1924
  2. 2. Algebra

    Solve: 8x = 64

    Answer: x = 8
  3. 3. Geometry

    Opposite = 12cm, adjacent = 10cm. Calculate the angle

    Answer: 50.2°
  4. 4. Ratio

    Find 34% of 398

    Answer: 135.32
  5. 5. Statistics

    Calculate the mean of: 9, 34, 7, 38, 37, 40, 12

    Answer: 25.3

Tuesday 6 August 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 66 + 33

    Answer: 66 + 33 = 99
  2. 2. Algebra

    Factorise: 3x² + 6x

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

    Find the area of a circle with radius 9cm

    Answer: 254.47cm²
  4. 4. Ratio

    Find 77% of 74

    Answer: 56.98
  5. 5. Statistics

    Calculate the range of: 74, 54, 79, 54, 49, 44

    Answer: 35

Wednesday 7 August 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 78 + ? = 111

    Answer: 33
  2. 2. Algebra

    Find the next term: 24, 33, 42, 51, ...

    Answer: 60
  3. 3. Geometry

    Opposite = 10cm, adjacent = 12cm. Calculate the angle

    Answer: 39.8°
  4. 4. Ratio

    Simplify: 8:12:8

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

    Find the mean of: 17, 9, 20

    Answer: 15.333333333333

Thursday 8 August 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 37 + ? = 178

    Answer: 141
  2. 2. Algebra

    Find the next term: 30, 33, 36, 39, ...

    Answer: 42
  3. 3. Geometry

    Opposite = 12cm, adjacent = 17cm. Calculate the angle

    Answer: 35.2°
  4. 4. Ratio

    Simplify: 9:15:18

    Answer: 3:5:6
  5. 5. Statistics

    Find the range of: 31, 35, 29, 16, 17

    Answer: 19

Friday 9 August 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 82 + 71

    Answer: 82 + 71 = 153
  2. 2. Algebra

    Solve: 10x - 8 = 4x + 34

    Answer: x = 7
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 14.cm. Find the angle

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

    Find 52% of 175

    Answer: 91
  5. 5. Statistics

    Calculate the mean of: 10, 50, 23, 30, 15, 7

    Answer: 22.5