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Lintel Jan 1 - 7 25 questions
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Monday 21 March 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

    Factorise: 3x² + 5x

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

    Adjacent = 27cm, hypotenuse = 47cm. Find the angle

    Answer: 54.9°
  4. 4. Ratio

    Simplify: 8:8:6

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

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

    Answer: 311

Tuesday 22 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 73 + ? = 164

    Answer: 91
  2. 2. Algebra

    Solve: 5x = 45

    Answer: x = 9
  3. 3. Geometry

    Opposite = 14cm, adjacent = 20cm. Calculate the angle

    Answer: 35°
  4. 4. Ratio

    Simplify: 12:20:20

    Answer: 3:5:5
  5. 5. Statistics

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

    Answer: 811

Wednesday 23 March 2022

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

    Solve: x5 = 6.2

    Answer: x = 31
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 33cm. Find the angle

    Answer: 56.9°
  4. 4. Ratio

    Find 19% of 474

    Answer: 90.06
  5. 5. Statistics

    Find the range of: 0, -13, 43, 24, 9

    Answer: 56

Thursday 24 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 993 + 728

    Answer: 1721
  2. 2. Algebra

    Simplify: 7x - 2x + 6y - y

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

    Find c if a = 10cm and b = 18cm in a right triangle

    Answer: 20.6cm
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 5 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 513

Friday 25 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 349 + 872

    Answer: 349 + 872 = 1221
  2. 2. Algebra

    Solve: 8x = 48

    Answer: x = 6
  3. 3. Geometry

    Opposite = 14cm, adjacent = 10cm. Calculate the angle

    Answer: 54.5°
  4. 4. Ratio

    Calculate 15.5% of 801

    Answer: 124.16
  5. 5. Statistics

    Find the range of: 27, -23, 8, 41, 13

    Answer: 64