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Lintel Jan 1 - 7 25 questions
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Monday 20 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 93. What are the numbers?

    Answer: 30, 31, and 32
  2. 2. Algebra

    Solve: 8x = 64

    Answer: x = 8
  3. 3. Geometry

    Opposite = 9cm, adjacent = 12cm. Calculate the angle

    Answer: 36.9°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 5 red, 3 blue and 2 green sections. Probability of landing on red?

    Answer: 12

Tuesday 21 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 312 + 337

    Answer: 312 + 337 = 649
  2. 2. Algebra

    Factorise fully: 16x² + 12x

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

    Adjacent = 20cm, hypotenuse = 38cm. Find the angle

    Answer: 58.2°
  4. 4. Ratio

    Calculate 33.4% of 302

    Answer: 100.87
  5. 5. Statistics

    Calculate the mean of: 24, 10, 25, 32, 37, 45

    Answer: 28.8

Wednesday 22 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 102. What are the numbers?

    Answer: 33, 34, and 35
  2. 2. Algebra

    Factorise fully: 21x² + 15x

    Answer: 3x(7x + 5)
  3. 3. Geometry

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

    Answer: 45°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 6, 35, 34, 30, 6, 28, 33, 44

    Answer: 27

Thursday 23 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 66 + ? = 167

    Answer: 101
  2. 2. Algebra

    Solve: 4x = 44

    Answer: x = 11
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 32cm. Find the angle

    Answer: 51.3°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 513

Friday 24 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 274, 268, and 134

    Answer: 676
  2. 2. Algebra

    Solve: 6x = 48

    Answer: x = 8
  3. 3. Geometry

    Adjacent = 19cm, hypotenuse = 35cm. Find the angle

    Answer: 57.1°
  4. 4. Ratio

    Simplify: 9:18:6

    Answer: 3:6:2
  5. 5. Statistics

    Calculate the mean of: 17, 26, 50, 14, 16, 42

    Answer: 27.5