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Lintel Jan 1 - 7 25 questions
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Monday 3 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 780

    Answer: 1771
  2. 2. Algebra

    Factorise fully: 6x² + 21x

    Answer: 3x(2x + 7)
  3. 3. Geometry

    Adjacent = 29cm, hypotenuse = 40cm. Find the angle

    Answer: 43.5°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 6 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 23

Tuesday 4 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 999 + 690

    Answer: 1689
  2. 2. Algebra

    Solve: x5 = 4.2

    Answer: x = 21
  3. 3. Geometry

    Find the distance between (-3, -1) and (12, 5)

    Answer: 16.16
  4. 4. Ratio

    Simplify: 16:24:24

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

    Find the range of: -8, -3, 7, 36, -24

    Answer: 60

Wednesday 5 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 17 + 58

    Answer: 4356
  2. 2. Algebra

    Factorise: 2x² + 2x

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

    Calculate the distance between (9, 4) and (12, 8)

    Answer: 5
  4. 4. Ratio

    Simplify: 8:16:20

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

    A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 411

Thursday 6 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 99. What are the numbers?

    Answer: 32, 33, and 34
  2. 2. Algebra

    Solve: 5x = 75

    Answer: x = 15
  3. 3. Geometry

    Adjacent = 27cm, hypotenuse = 45cm. Find the angle

    Answer: 53.1°
  4. 4. Ratio

    Find 61% of 212

    Answer: 129.32
  5. 5. Statistics

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

    Answer: 512

Friday 7 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 8.5 + 9.4 + 0.52?

    Answer: 8.5 + 9.4 + 0.52 = 18.42
  2. 2. Algebra

    Solve: x4 = 3.5

    Answer: x = 14
  3. 3. Geometry

    Calculate the area of a circle with diameter 10cm

    Answer: 78.54cm²
  4. 4. Ratio

    Simplify: 4:12:6

    Answer: 2:6:3
  5. 5. Statistics

    Find the range of: -16, 50, -3, 29, 23

    Answer: 66