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Lintel Jan 1 - 7 25 questions
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Monday 21 November 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 40 + ? = 149

    Answer: 109
  2. 2. Algebra

    Find the next term: 1, 4, 10, 19, ...

    Answer: 31
  3. 3. Geometry

    Adjacent = 27cm, hypotenuse = 32cm. Find the angle

    Answer: 32.5°
  4. 4. Ratio

    Simplify: 8:20:12

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

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

    Answer: 12

Tuesday 22 November 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3.55 + 35.03 + 0.79

    Answer: 3.55 + 35.03 + 0.79 = 39.37
  2. 2. Algebra

    Factorise fully: 9x² + 21x

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

    Opposite = 9cm, adjacent = 19cm. Calculate the angle

    Answer: 25.3°
  4. 4. Ratio

    Simplify: 18:12:15

    Answer: 6:4:5
  5. 5. Statistics

    A bag has 4 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 13

Wednesday 23 November 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 52 + ? = 167

    Answer: 115
  2. 2. Algebra

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

    Answer: 243
  3. 3. Geometry

    A circle has area 78.5cm². Find its radius (dp)

    Answer: 5cm
  4. 4. Ratio

    Simplify: 8:24:8

    Answer: 1:3:1
  5. 5. Statistics

    Find the range of: -27, 24, 8, -11, 24

    Answer: 51

Thursday 24 November 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 14 + 23

    Answer: 1112
  2. 2. Algebra

    Solve: 7x = 84

    Answer: x = 12
  3. 3. Geometry

    A right triangle has hypotenuse 13cm and one side 5cm. Find its area

    Answer: 30cm²
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 8 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 813

Friday 25 November 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 46 + 36 + 24

    Answer: 53
  2. 2. Algebra

    Solve: x8 = 0.875

    Answer: x = 7
  3. 3. Geometry

    Opposite = 12cm, adjacent = 20cm. Calculate the angle

    Answer: 31°
  4. 4. Ratio

    Calculate 36.5% of 624

    Answer: 227.76
  5. 5. Statistics

    Find the range of: -7, 46, 13, -20, 40

    Answer: 66