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Lintel Jan 1 - 7 25 questions
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Monday 27 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 102. What are the numbers?

    Answer: 33, 34, and 35
  2. 2. Algebra

    Expand: 4(3x + 3)

    Answer: 12x + 12
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 6cm and 7cm

    Answer: 21cm²
  4. 4. Ratio

    Find 65% of 100

    Answer: 65
  5. 5. Statistics

    Calculate the mean of: 27, 13, 8, 8, 42, 45, 22, 46

    Answer: 26.4

Tuesday 28 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 12 + 12 + 34

    Answer: 74
  2. 2. Algebra

    Solve: 8x = 112

    Answer: x = 14
  3. 3. Geometry

    Opposite = 13cm, adjacent = 18cm. Calculate the angle

    Answer: 35.8°
  4. 4. Ratio

    Find 58% of 155

    Answer: 89.9
  5. 5. Statistics

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

    Answer: 23

Wednesday 1 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 993 + 874

    Answer: 1867
  2. 2. Algebra

    Solve: 5x = 25

    Answer: x = 5
  3. 3. Geometry

    A right triangle has hypotenuse 10cm and one side 6cm. Find its area

    Answer: 24cm²
  4. 4. Ratio

    Simplify: 12:12:24

    Answer: 1:1:2
  5. 5. Statistics

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

    Answer: 310

Thursday 2 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 159 + 597

    Answer: 159 + 597 = 756
  2. 2. Algebra

    Solve: 6x = 48

    Answer: x = 8
  3. 3. Geometry

    Opposite = 11cm, adjacent = 14cm. Calculate the angle

    Answer: 38.2°
  4. 4. Ratio

    Simplify: 6:4:10

    Answer: 3:2:5
  5. 5. Statistics

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

    Answer: 310

Friday 3 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 999 + 836

    Answer: 1835
  2. 2. Algebra

    Solve: 7x + 9 = 5x - 4

    Answer: x = 6.5
  3. 3. Geometry

    Find the distance between (-5, 2) and (12, 5)

    Answer: 17.26
  4. 4. Ratio

    Find 19% of 106

    Answer: 20.14
  5. 5. Statistics

    Calculate the mean of: 49, 42, 28, 14, 50, 37, 10

    Answer: 32.9