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Cornerstone Jan 1 - 7 25 questions
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Monday 19 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 1.7 + 9.72 + 0.91?

    Answer: 1.7 + 9.72 + 0.91 = 12.33
  2. 2. Algebra

    For y = x³, find y when x = 2

    Answer: y = 8
  3. 3. Geometry

    Calculate the area of a circle with diameter 17cm

    Answer: 226.98cm²
  4. 4. Ratio

    Simplify the ratio 6:8

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 4, 8, 2, 11, 19

    Answer: 8.8

Tuesday 20 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 510 + 110

    Answer: 35
  2. 2. Algebra

    Expand: 2(x + 5)

    Answer: 2x + 10
  3. 3. Geometry

    Opposite = 14cm, hypotenuse = 19.8cm. Find the angle

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

    Simplify the ratio 20:40

    Answer: 1:2
  5. 5. Statistics

    Calculate the range of: 53, 75, 46, 51, 41, 57

    Answer: 34

Wednesday 21 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 122 + 651

    Answer: 122 + 651 = 773
  2. 2. Algebra

    Factorise: 9x² + 7x

    Answer: x(9x + 7)
  3. 3. Geometry

    Opposite = 15cm, adjacent = 16cm. Calculate the angle

    Answer: 43.2°
  4. 4. Ratio

    Calculate 50% of 124

    Answer: 62
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 12

Thursday 22 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 79 + 40

    Answer: 79 + 40 = 119
  2. 2. Algebra

    What is the next term? 5, 15, 45, 135, ...

    Answer: 405
  3. 3. Geometry

    Opposite = 7cm, hypotenuse = 8.cm. Find the angle

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

    Calculate 50% of 178

    Answer: 89
  5. 5. Statistics

    Find the mean of: 8, 17, 18, 6

    Answer: 12.25

Friday 23 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 5 + 3.6 + 0.47?

    Answer: 5 + 3.6 + 0.47 = 9.07
  2. 2. Algebra

    Simplify: 2x + 8x

    Answer: 10x
  3. 3. Geometry

    Calculate the area of a circle with diameter 20cm

    Answer: 314.16cm²
  4. 4. Ratio

    Simplify the ratio 10:8

    Answer: 5:4
  5. 5. Statistics

    A bag has 5 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 59