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Lintel Jan 1 - 7 25 questions
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Monday 24 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄3 + 1⁄3 + 2⁄3

    Answer: 5⁄3
  2. 2. Algebra

    Factorise: 8x² + 7x

    Answer: x(8x + 7)
  3. 3. Geometry

    Opposite = 14cm, adjacent = 10cm. Calculate the angle

    Answer: 54.5°
  4. 4. Ratio

    Calculate 33.7% of 797

    Answer: 268.59
  5. 5. Statistics

    Calculate the mean of: 45, 42, 24, 49, 21, 49, 29, 25

    Answer: 35.5

Tuesday 25 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 31 + ? = 171

    Answer: 140
  2. 2. Algebra

    Solve: x⁄6 = 1.3333333333333

    Answer: x = 8
  3. 3. Geometry

    Adjacent = 29cm, hypotenuse = 41cm. Find the angle

    Answer: 45°
  4. 4. Ratio

    Calculate 40.3% of 998

    Answer: 402.19
  5. 5. Statistics

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

    Answer: 1⁄4

Wednesday 26 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 108. What are the numbers?

    Answer: 35, 36, and 37
  2. 2. Algebra

    Solve: x⁄2 = 5

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 45°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 1⁄3

Thursday 27 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 145, 156, and 97

    Answer: 398
  2. 2. Algebra

    Solve: 6x = 84

    Answer: x = 14
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 41cm. Find the angle

    Answer: 57.5°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 6, 27, 46, 30, 5, 15

    Answer: 21.5

Friday 28 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 2⁄5

    Answer: 13⁄20
  2. 2. Algebra

    Solve: 7x = 105

    Answer: x = 15
  3. 3. Geometry

    Adjacent = 17cm, hypotenuse = 31cm. Find the angle

    Answer: 56.7°
  4. 4. Ratio

    Calculate 19.2% of 605

    Answer: 116.16
  5. 5. Statistics

    A bag has 6 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 2⁄3