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Lintel Jan 1 - 7 25 questions
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Monday 27 September 2021

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: x4 = 7.25

    Answer: x = 29
  3. 3. Geometry

    Opposite = 20cm, adjacent = 20cm. Calculate the angle

    Answer: 45°
  4. 4. Ratio

    Simplify: 12:6:6

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

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

    Answer: 12

Tuesday 28 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 694

    Answer: 1691
  2. 2. Algebra

    Find the next term: 1, 2, 4, 7, ...

    Answer: 11
  3. 3. Geometry

    Opposite = 16cm, adjacent = 15cm. Calculate the angle

    Answer: 46.8°
  4. 4. Ratio

    Simplify: 8:12:16

    Answer: 2:3:4
  5. 5. Statistics

    Calculate the mean of: 26, 27, 11, 47, 47, 14, 10

    Answer: 26

Wednesday 29 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 266, 216, and 76

    Answer: 558
  2. 2. Algebra

    Solve: 7x = 91

    Answer: x = 13
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 39cm. Find the angle

    Answer: 52°
  4. 4. Ratio

    Simplify: 12:9:15

    Answer: 4:3:5
  5. 5. Statistics

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

    Answer: 310

Thursday 30 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 135, 164, and 99

    Answer: 398
  2. 2. Algebra

    Expand: 6(5x + 2)

    Answer: 30x + 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 12cm

    Answer: 14.42cm
  4. 4. Ratio

    Simplify: 8:6:4

    Answer: 4:3:2
  5. 5. Statistics

    A spinner has 2 red, 6 blue and 6 green sections. Probability of landing on red?

    Answer: 17

Friday 1 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 78 + ? = 149

    Answer: 71
  2. 2. Algebra

    Solve: 5x = 55

    Answer: x = 11
  3. 3. Geometry

    Opposite = 18cm, adjacent = 12cm. Calculate the angle

    Answer: 56.3°
  4. 4. Ratio

    Find 78% of 268

    Answer: 209.04
  5. 5. Statistics

    Calculate the mean of: 24, 21, 43, 48, 19, 22, 43, 35

    Answer: 31.9