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Cornerstone Jan 1 - 7 25 questions
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Monday 4 November 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 248, 163, and 134

    Answer: 545
  2. 2. Algebra

    Solve: x + 10 = 20

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 50.2°
  4. 4. Ratio

    Simplify the ratio 21:9

    Answer: 7:3
  5. 5. Statistics

    Calculate the mean of: 10, 42, 39, 47, 10, 18, 8

    Answer: 24.9

Tuesday 5 November 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 84 + 83

    Answer: 84 + 83 = 167
  2. 2. Algebra

    Solve: 3x = 27

    Answer: x = 9
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 26cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 21:6

    Answer: 7:2
  5. 5. Statistics

    Find the mean of: 16, 3, 12, 4, 5

    Answer: 8

Wednesday 6 November 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 768 + 874

    Answer: 768 + 874 = 1642
  2. 2. Algebra

    Factorise: 9x² + 8x

    Answer: x(9x + 8)
  3. 3. Geometry

    Opposite = 19cm, adjacent = 19cm. Calculate the angle

    Answer: 45°
  4. 4. Ratio

    Calculate 50% of 91

    Answer: 45.5
  5. 5. Statistics

    Find the range of: 17, 5, 7, 5, 34

    Answer: 29

Thursday 7 November 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    80000

    Answer: 8 × 104
  2. 2. Algebra

    Factorise: 30x + 40

    Answer: 5(6x + 8)
  3. 3. Geometry

    Find the area of a right triangle with base 7cm and height 10cm

    Answer: 35cm²
  4. 4. Ratio

    Simplify the ratio 20:40

    Answer: 1:2
  5. 5. Statistics

    Calculate the mean of: 35, 19, 36, 8, 25, 38, 33

    Answer: 27.7

Friday 8 November 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 21 + 37

    Answer: 21 + 37 = 58
  2. 2. Algebra

    Solve: x + 9 = 22

    Answer: x = 13
  3. 3. Geometry

    Find the area of a right triangle with base 5cm and height 11cm

    Answer: 27.5cm²
  4. 4. Ratio

    Simplify the ratio 10:6

    Answer: 5:3
  5. 5. Statistics

    Calculate the mean of: 19, 23, 36, 34, 32, 17, 44

    Answer: 29.3