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Lintel Jan 1 - 7 25 questions
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Monday 27 November 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: -5 + (-16)

    Answer: -21
  2. 2. Algebra

    Solve: 2x = 28

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 55.5°
  4. 4. Ratio

    Calculate 45.6% of 689

    Answer: 314.18
  5. 5. Statistics

    Calculate the mean of: 30, 40, 46, 42, 6, 17

    Answer: 30.2

Tuesday 28 November 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 486 + 606

    Answer: 486 + 606 = 1092
  2. 2. Algebra

    Factorise: 7x² + 4x

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

    Opposite = 16cm, adjacent = 8cm. Calculate the angle

    Answer: 63.4°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 512

Wednesday 29 November 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 674

    Answer: 1670
  2. 2. Algebra

    Factorise fully: 10x² + 8x

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

    Find c if a = 12cm and b = 22cm in a right triangle

    Answer: 25.cm
  4. 4. Ratio

    Calculate 10.9% of 972

    Answer: 105.95
  5. 5. Statistics

    Find the range of: 10, 45, -4, 12, -18

    Answer: 63

Thursday 30 November 2023

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: x2 = 17

    Answer: x = 34
  3. 3. Geometry

    Calculate the area of a circle with diameter 8cm

    Answer: 50.27cm²
  4. 4. Ratio

    Calculate 27.9% of 737

    Answer: 205.62
  5. 5. Statistics

    Find the range of: 10, -28, 41, 34, 0

    Answer: 69

Friday 1 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 92 + ? = 108

    Answer: 16
  2. 2. Algebra

    Solve: x6 = 1.1666666666667

    Answer: x = 7
  3. 3. Geometry

    Calculate the area of a circle with diameter 18cm

    Answer: 254.47cm²
  4. 4. Ratio

    Calculate 37.7% of 803

    Answer: 302.73
  5. 5. Statistics

    Find the range of: 22, -3, -7, -19, 23

    Answer: 42