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Lintel Jan 1 - 7 25 questions
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Monday 24 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 147. What are the numbers?

    Answer: 48, 49, and 50
  2. 2. Algebra

    Solve: 6x = 42

    Answer: x = 7
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 40cm. Find the angle

    Answer: 56.6°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 12

Tuesday 25 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 555 + 529

    Answer: 555 + 529 = 1084
  2. 2. Algebra

    Solve: x7 = 2.8571428571429

    Answer: x = 20
  3. 3. Geometry

    Opposite = 12cm, adjacent = 10cm. Calculate the angle

    Answer: 50.2°
  4. 4. Ratio

    Calculate 49.3% of 509

    Answer: 250.94
  5. 5. Statistics

    Find the range of: -17, 36, -23, -7, -16

    Answer: 59

Wednesday 26 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 598

    Answer: 1594
  2. 2. Algebra

    Solve: x6 = 4.3333333333333

    Answer: x = 26
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 32cm. Find the angle

    Answer: 44°
  4. 4. Ratio

    Calculate 30.8% of 985

    Answer: 303.38
  5. 5. Statistics

    Find the range of: 21, -10, -8, 8, -10

    Answer: 31

Thursday 27 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√2 - 2√2

    Answer: 3√2
  2. 2. Algebra

    Factorise: 7x² + 4x

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

    Opposite = 16cm, adjacent = 11cm. Calculate the angle

    Answer: 55.5°
  4. 4. Ratio

    Calculate 37.4% of 639

    Answer: 238.99
  5. 5. Statistics

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

    Answer: 815

Friday 28 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    57000

    Answer: 5.7 × 104
  2. 2. Algebra

    Factorise: 5x² + 9x

    Answer: x(5x + 9)
  3. 3. Geometry

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

    Answer: 37.4°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 18, 36, 48, 7, 13, 19, 20, 12

    Answer: 21.6