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Cornerstone Jan 1 - 7 25 questions
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Monday 11 March 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 963 + 699

    Answer: 963 + 699 = 1662
  2. 2. Algebra

    Solve: 8x - 9 = 5x + 18

    Answer: x = 9
  3. 3. Geometry

    Opposite = 11cm, adjacent = 18cm. Calculate the angle

    Answer: 31.4°
  4. 4. Ratio

    Simplify the ratio 16:8

    Answer: 2:1
  5. 5. Statistics

    Calculate the mean of: 20, 25, 22, 36, 29, 31, 46, 35

    Answer: 30.5

Tuesday 12 March 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2 × 3²

    Answer: 18
  2. 2. Algebra

    What is the next term? 3, 9, 27, 81, ...

    Answer: 243
  3. 3. Geometry

    Find the distance between (2, 1) and (5, 7)

    Answer: 6.71
  4. 4. Ratio

    Simplify the ratio 8:24

    Answer: 1:3
  5. 5. Statistics

    A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 411

Wednesday 13 March 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 68 + ? = 165

    Answer: 97
  2. 2. Algebra

    Factorise: 30x + 36

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

    Calculate the area of a circle with diameter 13cm

    Answer: 132.73cm²
  4. 4. Ratio

    Calculate 50% of 118

    Answer: 59
  5. 5. Statistics

    Find the mean of: 3, 2, 19

    Answer: 8

Thursday 14 March 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 135 + 322

    Answer: 135 + 322 = 457
  2. 2. Algebra

    Simplify: 5x + 8x

    Answer: 13x
  3. 3. Geometry

    Opposite = 8cm, adjacent = 16cm. Calculate the angle

    Answer: 26.6°
  4. 4. Ratio

    Simplify: 15:6:6

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

    A bag has 3 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 37

Friday 15 March 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 49 + 89

    Answer: 49 + 89 = 138
  2. 2. Algebra

    Expand: 2(4x + 4)

    Answer: 8x + 8
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

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

    Simplify: 10:4:4

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

    Find the mean of: 10, 9, 4

    Answer: 7.6666666666667