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Lintel Jan 1 - 7 25 questions
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Monday 23 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 754 + 986

    Answer: 754 + 986 = 1740
  2. 2. Algebra

    Collect like terms: 6x + 6y + 6x + 4y

    Answer: 12x + 10y
  3. 3. Geometry

    Adjacent = 28cm, hypotenuse = 40cm. Find the angle

    Answer: 45.6°
  4. 4. Ratio

    Find 79% of 401

    Answer: 316.79
  5. 5. Statistics

    Find the range of: 38, 12, -19, -19, 34

    Answer: 57

Tuesday 24 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 73 + ? = 123

    Answer: 50
  2. 2. Algebra

    For y = x³ + 9, calculate y when x = 3

    Answer: y = 36
  3. 3. Geometry

    Find c if a = 17cm and b = 18cm in a right triangle

    Answer: 24.8cm
  4. 4. Ratio

    Calculate 22.9% of 901

    Answer: 206.33
  5. 5. Statistics

    A bag has 6 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 6⁄11

Wednesday 25 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9.7 + 48.03 + 0.879

    Answer: 9.7 + 48.03 + 0.879 = 58.609
  2. 2. Algebra

    Solve: x⁄5 = 2.4

    Answer: x = 12
  3. 3. Geometry

    Opposite = 12cm, adjacent = 13cm. Calculate the angle

    Answer: 42.7°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: -25, 20, -7, -4, 15

    Answer: 45

Thursday 26 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 97 + ? = 108

    Answer: 11
  2. 2. Algebra

    Expand: 8(6x - 8)

    Answer: 48x - 64
  3. 3. Geometry

    A circle has area 201.cm². Find its radius (dp)

    Answer: 8cm
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: 25, -10, -20, -24, 38

    Answer: 62

Friday 27 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 990 + 811

    Answer: 1801
  2. 2. Algebra

    Solve: 6x = 36

    Answer: x = 6
  3. 3. Geometry

    Opposite = 13cm, adjacent = 19cm. Calculate the angle

    Answer: 34.4°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 3 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 3⁄7