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Lintel Jan 1 - 7 25 questions
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Monday 29 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 93. What are the numbers?

    Answer: 30, 31, and 32
  2. 2. Algebra

    Factorise: 2x² + 6x

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

    Calculate the area of a circle with diameter 14cm

    Answer: 153.94cm²
  4. 4. Ratio

    Simplify: 12:9:6

    Answer: 4:3:2
  5. 5. Statistics

    A bag has 7 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 710

Tuesday 30 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 608

    Answer: 1599
  2. 2. Algebra

    Solve: 7x = 28

    Answer: x = 4
  3. 3. Geometry

    Find the distance between (-4, -3) and (4, 3)

    Answer: 10
  4. 4. Ratio

    Simplify: 10:6:8

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

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

    Answer: 715

Wednesday 31 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 6√2 - 5√2

    Answer: 1√2
  2. 2. Algebra

    Factorise fully: 8x² + 20x

    Answer: 4x(2x + 5)
  3. 3. Geometry

    Opposite = 16cm, adjacent = 13cm. Calculate the angle

    Answer: 50.9°
  4. 4. Ratio

    Find 81% of 103

    Answer: 83.43
  5. 5. Statistics

    Find the range of: -15, -9, 42, -5, -5

    Answer: 57

Thursday 1 August 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the missing number: 2.53 + □ = 10.37

    Answer: □ = 7.84
  2. 2. Algebra

    Factorise: 7x² + 4x

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

    Opposite = 15cm, adjacent = 10cm. Calculate the angle

    Answer: 56.3°
  4. 4. Ratio

    Calculate 21% of 649

    Answer: 136.29
  5. 5. Statistics

    A bag has 8 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 47

Friday 2 August 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 87 + ? = 148

    Answer: 61
  2. 2. Algebra

    Solve: 4x = 52

    Answer: x = 13
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 50cm. Find the angle

    Answer: 53.1°
  4. 4. Ratio

    Calculate 50% of 700

    Answer: 350
  5. 5. Statistics

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

    Answer: 711