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Lintel Jan 1 - 7 25 questions
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Monday 28 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 14 + 14 + 56

    Answer: 43
  2. 2. Algebra

    Factorise fully: 6x² + 18x

    Answer: 3x(2x + 6)
  3. 3. Geometry

    Calculate perimeter: two sides are 13cm and 6cm at right angles

    Answer: 33.3cm
  4. 4. Ratio

    Calculate 11.5% of 482

    Answer: 55.43
  5. 5. Statistics

    Find the range of: 40, 28, 16, -15, 20

    Answer: 55

Tuesday 29 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 242, 149, and 95

    Answer: 486
  2. 2. Algebra

    Solve: 5x = 45

    Answer: x = 9
  3. 3. Geometry

    Find c if a = 19cm and b = 18cm in a right triangle

    Answer: 26.2cm
  4. 4. Ratio

    Calculate 11.5% of 613

    Answer: 70.5
  5. 5. Statistics

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

    Answer: 813

Wednesday 30 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 81 + ? = 107

    Answer: 26
  2. 2. Algebra

    Solve: 6x = 30

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 13cm

    Answer: 13.6cm
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 6 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 35

Thursday 1 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 26 + 34 + 13

    Answer: 1712
  2. 2. Algebra

    Find the next term: 1, 2, 4, 7, ...

    Answer: 11
  3. 3. Geometry

    Adjacent = 26cm, hypotenuse = 41cm. Find the angle

    Answer: 50.6°
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 37, 15, 15, 33, 45, 34, 25

    Answer: 29.1

Friday 2 May 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 139 + 124

    Answer: 139 + 124 = 263
  2. 2. Algebra

    Simplify: 12x - 9x + 6y - 5y

    Answer: 3x + y
  3. 3. Geometry

    Opposite = 18cm, adjacent = 12cm. Calculate the angle

    Answer: 56.3°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 30, 26, 14, 40, 7, 16, 38

    Answer: 24.4