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Cornerstone Jan 1 - 7 25 questions
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Monday 16 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 2 + 7.07 + 0.85?

    Answer: 2 + 7.07 + 0.85 = 9.92
  2. 2. Algebra

    Solve: 2x = 22

    Answer: x = 11
  3. 3. Geometry

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

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

    Find 80% of 170

    Answer: 136
  5. 5. Statistics

    Calculate the mean of: 18, 45, 18, 7, 48, 43, 41

    Answer: 31.4

Tuesday 17 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 69 + 85

    Answer: 69 + 85 = 154
  2. 2. Algebra

    Factorise: 20x + 20

    Answer: 4(5x + 5)
  3. 3. Geometry

    Opposite = 14cm, adjacent = 18cm. Calculate the angle

    Answer: 37.9°
  4. 4. Ratio

    Simplify: 6:4:10

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

    Find the range of: 28, 5, 6, 21, 11

    Answer: 23

Wednesday 18 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 53 + 69

    Answer: 53 + 69 = 122
  2. 2. Algebra

    Solve: x + 11 = 21

    Answer: x = 10
  3. 3. Geometry

    Opposite = 16cm, adjacent = 13cm. Calculate the angle

    Answer: 50.9°
  4. 4. Ratio

    Find 44% of 392

    Answer: 172.48
  5. 5. Statistics

    Find the range of: 24, 21, 28, 13, 23

    Answer: 15

Thursday 19 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 23 + 26

    Answer: 11
  2. 2. Algebra

    For y = x³ + 11, calculate y when x = 4

    Answer: y = 75
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 16cm. Find the angle

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

    Simplify: 20:20:12

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

    Calculate the mean of: 14, 15, 10, 34, 20, 20, 5, 47

    Answer: 20.6

Friday 20 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 37 + 48

    Answer: 37 + 48 = 85
  2. 2. Algebra

    Factorise: 8x² + 8x

    Answer: 8x(x + 1)
  3. 3. Geometry

    Calculate the area of a circle with diameter 9cm

    Answer: 63.62cm²
  4. 4. Ratio

    Simplify: 6:12:15

    Answer: 2:4:5
  5. 5. Statistics

    Find the mean of: 11, 5, 13, 14

    Answer: 10.75