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Lintel Jan 1 - 7 25 questions
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Monday 14 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 999 + 851

    Answer: 1850
  2. 2. Algebra

    Solve: 5x = 50

    Answer: x = 10
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 25cm. Find the angle

    Answer: 53.1°
  4. 4. Ratio

    Calculate 32.1% of 399

    Answer: 128.08
  5. 5. Statistics

    Find the range of: 28, 39, -23, 32, 30

    Answer: 62

Tuesday 15 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 61 + ? = 165

    Answer: 104
  2. 2. Algebra

    Simplify: 8x - 3x + 10y - 5y

    Answer: 5x + 5y
  3. 3. Geometry

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

    Answer: 45°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 7 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 712

Wednesday 16 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 111. What are the numbers?

    Answer: 36, 37, and 38
  2. 2. Algebra

    Factorise fully: 15x² + 10x

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

    Adjacent = 18cm, hypotenuse = 30cm. Find the angle

    Answer: 53.1°
  4. 4. Ratio

    Calculate 39.8% of 568

    Answer: 226.06
  5. 5. Statistics

    A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 715

Thursday 17 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    850000

    Answer: 8.5 × 105
  2. 2. Algebra

    What is the next term? 7, 21, 63, 189, ...

    Answer: 567
  3. 3. Geometry

    Opposite = 16cm, adjacent = 20cm. Calculate the angle

    Answer: 38.7°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: -5, 13, -20, 10, 46

    Answer: 66

Friday 18 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 45 + ? = 191

    Answer: 146
  2. 2. Algebra

    Solve: 9x = 99

    Answer: x = 11
  3. 3. Geometry

    Opposite = 19cm, adjacent = 20cm. Calculate the angle

    Answer: 43.5°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 25