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Cornerstone Jan 1 - 7 25 questions
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Monday 14 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 82 + 31

    Answer: 82 + 31 = 113
  2. 2. Algebra

    Factorise: 9x + 15

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

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

    Answer: 45°
  4. 4. Ratio

    Simplify the ratio 4:8

    Answer: 1:2
  5. 5. Statistics

    Calculate the range of: 54, 82, 67, 34, 32, 47

    Answer: 50

Tuesday 15 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 79 + ? = 120

    Answer: 41
  2. 2. Algebra

    Solve: 8x = 72

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Simplify the ratio 40:25

    Answer: 8:5
  5. 5. Statistics

    What is the probability of rolling a 5 on a fair die?

    Answer: 1⁄6

Wednesday 16 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 33 + 91

    Answer: 33 + 91 = 124
  2. 2. Algebra

    Expand: 4(4x + 3)

    Answer: 16x + 12
  3. 3. Geometry

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

    Answer: 39.1°
  4. 4. Ratio

    Calculate 50% of 125

    Answer: 62.5
  5. 5. Statistics

    Find the range of: 35, 6, 35, 24, 25

    Answer: 29

Thursday 17 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 546 + 188

    Answer: 546 + 188 = 734
  2. 2. Algebra

    Solve: x + 10 = 22

    Answer: x = 12
  3. 3. Geometry

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

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

    Calculate 25% of 176

    Answer: 44
  5. 5. Statistics

    Calculate the mean of: 27, 44, 49, 43, 7, 15

    Answer: 30.8

Friday 18 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄8 + 1⁄6

    Answer: 7⁄24
  2. 2. Algebra

    Find the next term: 29, 39, 49, 59, ...

    Answer: 69
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

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

    Simplify the ratio 15:20

    Answer: 3:4
  5. 5. Statistics

    Calculate the mean of: 40, 31, 8, 38, 5, 23, 25, 21

    Answer: 23.9