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Lintel Jan 1 - 7 25 questions
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Monday 14 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 105. What are the numbers?

    Answer: 34, 35, and 36
  2. 2. Algebra

    Factorise fully: 4x² + 6x

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

    Adjacent = 19cm, hypotenuse = 34cm. Find the angle

    Answer: 56°
  4. 4. Ratio

    Calculate 15.1% of 312

    Answer: 47.11
  5. 5. Statistics

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

    Answer: 1⁄5

Tuesday 15 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 98 + ? = 112

    Answer: 14
  2. 2. Algebra

    What is the next term? 8, 24, 72, 216, ...

    Answer: 648
  3. 3. Geometry

    Opposite = 11cm, adjacent = 15cm. Calculate the angle

    Answer: 36.3°
  4. 4. Ratio

    Calculate 25.5% of 234

    Answer: 59.67
  5. 5. Statistics

    Calculate the mean of: 17, 23, 5, 50, 21, 16, 41, 37

    Answer: 26.3

Wednesday 16 February 2022

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: 6x² + 3x

    Answer: 3x(2x + 1)
  3. 3. Geometry

    Find perimeter: adjacent = 18cm, angle = 47°

    Answer: 63.7cm
  4. 4. Ratio

    Calculate 44.7% of 538

    Answer: 240.49
  5. 5. Statistics

    Calculate the mean of: 29, 22, 33, 18, 26, 27

    Answer: 25.8

Thursday 17 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 262, 107, and 142

    Answer: 511
  2. 2. Algebra

    Expand: 7(7x - 5)

    Answer: 49x - 35
  3. 3. Geometry

    Opposite = 17cm, adjacent = 13cm. Calculate the angle

    Answer: 52.6°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 6 red, 3 blue and 3 green sections. Probability of landing on red?

    Answer: 1⁄2

Friday 18 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 91 + ? = 139

    Answer: 48
  2. 2. Algebra

    Solve: x⁄7 = 5.5714285714286

    Answer: x = 39
  3. 3. Geometry

    Opposite = 14cm, adjacent = 18cm. Calculate the angle

    Answer: 37.9°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: 27, -21, 10, 29, 14

    Answer: 50