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Lintel Jan 1 - 7 25 questions
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Monday 11 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 126. What are the numbers?

    Answer: 41, 42, and 43
  2. 2. Algebra

    Solve: 8x - 3 = 2x + 9

    Answer: x = 2
  3. 3. Geometry

    Calculate the distance between (8, 4) and (11, 8)

    Answer: 5
  4. 4. Ratio

    Find 25% of 245

    Answer: 61.25
  5. 5. Statistics

    A spinner has 6 red, 2 blue and 5 green sections. Probability of landing on red?

    Answer: 613

Tuesday 12 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 34 + ? = 145

    Answer: 111
  2. 2. Algebra

    Solve: 2x = 30

    Answer: x = 15
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 46cm. Find the angle

    Answer: 49.3°
  4. 4. Ratio

    Simplify: 18:18:9

    Answer: 2:2:1
  5. 5. Statistics

    A spinner has 4 red, 3 blue and 5 green sections. Probability of landing on red?

    Answer: 13

Wednesday 13 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 25 + 25 + 34

    Answer: 3120
  2. 2. Algebra

    Solve: x4 = 2.75

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 43.5°
  4. 4. Ratio

    Find 68% of 89

    Answer: 60.52
  5. 5. Statistics

    Calculate the mean of: 50, 43, 18, 18, 11, 48

    Answer: 31.3

Thursday 14 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 138. What are the numbers?

    Answer: 45, 46, and 47
  2. 2. Algebra

    Solve: x8 = 5

    Answer: x = 40
  3. 3. Geometry

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

    Answer: 45°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 3 red, 2 blue and 4 green sections. Probability of landing on red?

    Answer: 13

Friday 15 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 78 + ? = 192

    Answer: 114
  2. 2. Algebra

    Factorise: 9x² + 4x

    Answer: x(9x + 4)
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 23cm. Find the angle

    Answer: 38.5°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 44, 26, 43, 14, 47, 43, 28

    Answer: 35