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Lintel Jan 1 - 7 25 questions
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Monday 5 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The temperature is -5°C. It rises by 11°C. What is the new temperature?

    Answer: 6°C
  2. 2. Algebra

    Solve: 3x = 39

    Answer: x = 13
  3. 3. Geometry

    Find perimeter: adjacent = 23cm, angle = 40°

    Answer: 72.3cm
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 13

Tuesday 6 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 47 + ? = 159

    Answer: 112
  2. 2. Algebra

    Solve: 3x = 21

    Answer: x = 7
  3. 3. Geometry

    Opposite = 12cm, adjacent = 11cm. Calculate the angle

    Answer: 47.5°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 6 red, 4 blue and 3 green sections. Probability of landing on red?

    Answer: 613

Wednesday 7 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 114. What are the numbers?

    Answer: 37, 38, and 39
  2. 2. Algebra

    Solve: x3 = 5.6666666666667

    Answer: x = 17
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 32cm. Find the angle

    Answer: 46.6°
  4. 4. Ratio

    Calculate 11.5% of 828

    Answer: 95.22
  5. 5. Statistics

    Calculate the mean of: 50, 33, 49, 33, 11, 44, 13

    Answer: 33.3

Thursday 8 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 794

    Answer: 1791
  2. 2. Algebra

    Solve: x5 = 5.4

    Answer: x = 27
  3. 3. Geometry

    A right triangle has hypotenuse 5cm and one side 3cm. Find its area

    Answer: 6cm²
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 23

Friday 9 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 64 + ? = 167

    Answer: 103
  2. 2. Algebra

    Expand: 3(2x + 9)

    Answer: 6x + 27
  3. 3. Geometry

    Opposite = 18cm, adjacent = 11cm. Calculate the angle

    Answer: 58.6°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: 25, 25, 14, 10, -14

    Answer: 39