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Lintel Jan 1 - 7 25 questions
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Monday 25 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 679

    Answer: 1670
  2. 2. Algebra

    Solve: x⁄4 = 5

    Answer: x = 20
  3. 3. Geometry

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

    Answer: 33.7°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 35, 17, 40, 41, 47, 47, 22

    Answer: 35.6

Tuesday 26 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 247, 100, and 91

    Answer: 438
  2. 2. Algebra

    Solve: x⁄6 = 3.3333333333333

    Answer: x = 20
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 36cm. Find the angle

    Answer: 63.6°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 43, 5, 11, 5, 41, 49, 18, 11

    Answer: 22.9

Wednesday 27 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 138. What are the numbers?

    Answer: 45, 46, and 47
  2. 2. Algebra

    Solve: 6x = 36

    Answer: x = 6
  3. 3. Geometry

    Opposite = 14cm, adjacent = 16cm. Calculate the angle

    Answer: 41.2°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 2 red, 4 blue and 6 green sections. Probability of landing on red?

    Answer: 1⁄6

Thursday 28 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 144. What are the numbers?

    Answer: 47, 48, and 49
  2. 2. Algebra

    Factorise: 2x² + 9x

    Answer: x(2x + 9)
  3. 3. Geometry

    Opposite = 13cm, adjacent = 15cm. Calculate the angle

    Answer: 40.9°
  4. 4. Ratio

    Calculate 38.9% of 886

    Answer: 344.65
  5. 5. Statistics

    Find the range of: -18, -19, 1, 19, 40

    Answer: 59

Friday 29 April 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: x5 × x4

    Answer: x9
  2. 2. Algebra

    Solve: x⁄5 = 4.8

    Answer: x = 24
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 23cm. Find the angle

    Answer: 38.5°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 5 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 5⁄12