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Lintel Jan 1 - 7 25 questions
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Monday 15 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 476 + 761

    Answer: 476 + 761 = 1237
  2. 2. Algebra

    For y = x³ + 12, calculate y when x = 4

    Answer: y = 76
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 30cm. Find the angle

    Answer: 60°
  4. 4. Ratio

    Calculate 12.8% of 969

    Answer: 124.03
  5. 5. Statistics

    Find the range of: -13, -14, -18, -13, 20

    Answer: 38

Tuesday 16 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 12 + 16 + 34

    Answer: 1712
  2. 2. Algebra

    Factorise: 3x² + 4x

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

    Calculate perimeter: two sides are 15cm and 6cm at right angles

    Answer: 37.2cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: -24, -3, 35, -26, 2

    Answer: 61

Wednesday 17 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 209, 254, and 125

    Answer: 588
  2. 2. Algebra

    Simplify: 5x - 4x + 8y - y

    Answer: x + 7y
  3. 3. Geometry

    Find c if a = 10cm and b = 25cm in a right triangle

    Answer: 26.9cm
  4. 4. Ratio

    Calculate 22.3% of 987

    Answer: 220.1
  5. 5. Statistics

    A bag has 4 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 13

Thursday 18 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: x6 × x3

    Answer: x9
  2. 2. Algebra

    Factorise fully: 15x² + 35x

    Answer: 5x(3x + 7)
  3. 3. Geometry

    Adjacent = 29cm, hypotenuse = 44cm. Find the angle

    Answer: 48.8°
  4. 4. Ratio

    Calculate 45.9% of 635

    Answer: 291.47
  5. 5. Statistics

    Calculate the mean of: 22, 24, 31, 27, 36, 36

    Answer: 29.3

Friday 19 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 566

    Answer: 1563
  2. 2. Algebra

    Solve: 5x = 40

    Answer: x = 8
  3. 3. Geometry

    Opposite = 8cm, adjacent = 18cm. Calculate the angle

    Answer: 24°
  4. 4. Ratio

    Calculate 29.9% of 353

    Answer: 105.55
  5. 5. Statistics

    A spinner has 3 red, 6 blue and 5 green sections. Probability of landing on red?

    Answer: 314