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Lintel Jan 1 - 7 25 questions
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Monday 9 January 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 999 + 725

    Answer: 1724
  2. 2. Algebra

    Solve: x⁄4 = 8.25

    Answer: x = 33
  3. 3. Geometry

    Opposite = 17cm, adjacent = 9cm. Calculate the angle

    Answer: 62.1°
  4. 4. Ratio

    Calculate 34.3% of 795

    Answer: 272.69
  5. 5. Statistics

    Calculate the mean of: 13, 39, 36, 17, 33, 33, 16

    Answer: 26.7

Tuesday 10 January 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 150. What are the numbers?

    Answer: 49, 50, and 51
  2. 2. Algebra

    Factorise fully: 20x² + 8x

    Answer: 4x(5x + 2)
  3. 3. Geometry

    Adjacent = 28cm, hypotenuse = 35cm. Find the angle

    Answer: 36.9°
  4. 4. Ratio

    Calculate 11.7% of 936

    Answer: 109.51
  5. 5. Statistics

    Calculate the mean of: 35, 50, 8, 18, 10, 13, 43, 31

    Answer: 26

Wednesday 11 January 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 89 + ? = 142

    Answer: 53
  2. 2. Algebra

    Solve: 3x = 33

    Answer: x = 11
  3. 3. Geometry

    Opposite = 10cm, adjacent = 13cm. Calculate the angle

    Answer: 37.6°
  4. 4. Ratio

    Calculate 36.3% of 314

    Answer: 113.98
  5. 5. Statistics

    A spinner has 4 red, 2 blue and 6 green sections. Probability of landing on red?

    Answer: 1⁄3

Thursday 12 January 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 147. What are the numbers?

    Answer: 48, 49, and 50
  2. 2. Algebra

    Solve: 8x = 40

    Answer: x = 5
  3. 3. Geometry

    Adjacent = 29cm, hypotenuse = 35cm. Find the angle

    Answer: 34°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 5 red, 6 blue and 4 green sections. Probability of landing on red?

    Answer: 1⁄3

Friday 13 January 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 88 + ? = 146

    Answer: 58
  2. 2. Algebra

    Solve: x⁄7 = 2.4285714285714

    Answer: x = 17
  3. 3. Geometry

    Opposite = 18cm, adjacent = 19cm. Calculate the angle

    Answer: 43.5°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 21, 30, 49, 27, 26, 30, 48

    Answer: 33