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Lintel Jan 1 - 7 25 questions
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Monday 23 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 26 + 34

    Answer: 1312
  2. 2. Algebra

    Factorise fully: 6x² + 9x

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

    Find c if a = 20cm and b = 20cm in a right triangle

    Answer: 28.3cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 42, 45, 34, 44, 47, 47, 7, 19

    Answer: 35.6

Tuesday 24 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 127 + 132

    Answer: 127 + 132 = 259
  2. 2. Algebra

    Simplify: 6x - 4x + 9y - 6y

    Answer: 2x + 3y
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 37cm. Find the angle

    Answer: 51.6°
  4. 4. Ratio

    Simplify: 16:12:8

    Answer: 4:3:2
  5. 5. Statistics

    A spinner has 6 red, 4 blue and 3 green sections. Probability of landing on red?

    Answer: 613

Wednesday 25 May 2022

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: 9x = 108

    Answer: x = 12
  3. 3. Geometry

    Opposite = 18cm, adjacent = 8cm. Calculate the angle

    Answer: 66°
  4. 4. Ratio

    Simplify: 20:24:8

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

    Calculate the mean of: 28, 25, 9, 37, 42, 34

    Answer: 29.2

Thursday 26 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: x6 × x5

    Answer: x11
  2. 2. Algebra

    Factorise: 6x² + 2x

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

    Find the distance between (-7, 0) and (4, 8)

    Answer: 13.6
  4. 4. Ratio

    Simplify: 10:8:10

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

    Calculate the mean of: 20, 32, 28, 23, 8, 23, 34, 37

    Answer: 25.6

Friday 27 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 123. What are the numbers?

    Answer: 40, 41, and 42
  2. 2. Algebra

    Solve: x2 = 14

    Answer: x = 28
  3. 3. Geometry

    Opposite = 15cm, adjacent = 8cm. Calculate the angle

    Answer: 61.9°
  4. 4. Ratio

    Simplify: 24:20:20

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

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

    Answer: 49