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Lintel Jan 1 - 7 25 questions
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Monday 27 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 8.9 + 9.74 + 0.95?

    Answer: 8.9 + 9.74 + 0.95 = 19.59
  2. 2. Algebra

    Solve: 4x + 8 = x - 8

    Answer: x = 5.3
  3. 3. Geometry

    A right triangle has hypotenuse 13cm and one side 5cm. Find its area

    Answer: 30cm²
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 18, 42, 35, 45, 35, 37, 23, 31

    Answer: 33.3

Tuesday 28 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 295, 258, and 144

    Answer: 697
  2. 2. Algebra

    Factorise fully: 28x² + 12x

    Answer: 4x(7x + 3)
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 30cm. Find the angle

    Answer: 60°
  4. 4. Ratio

    Calculate 15% of 516

    Answer: 77.4
  5. 5. Statistics

    A bag has 8 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 811

Wednesday 29 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the missing number: 4.03 + □ = 13.86

    Answer: □ = 9.83
  2. 2. Algebra

    What is the next term? 4, 16, 64, 256, ...

    Answer: 1024
  3. 3. Geometry

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

    Answer: 45°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: 9, 3, 7, 23, -11

    Answer: 34

Thursday 30 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 998 + 729

    Answer: 1727
  2. 2. Algebra

    Solve: 6x = 36

    Answer: x = 6
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 34cm. Find the angle

    Answer: 42.7°
  4. 4. Ratio

    Calculate 46.1% of 622

    Answer: 286.74
  5. 5. Statistics

    Find the range of: 13, -26, -10, 30, -2

    Answer: 56

Friday 31 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 647 + 769

    Answer: 647 + 769 = 1416
  2. 2. Algebra

    Solve: x7 = 1.8571428571429

    Answer: x = 13
  3. 3. Geometry

    Opposite = 8cm, adjacent = 13cm. Calculate the angle

    Answer: 31.6°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    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