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Lintel Jan 1 - 7 25 questions
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Monday 19 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 771

    Answer: 1762
  2. 2. Algebra

    Factorise: 9x² + 2x

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

    Adjacent = 12cm, hypotenuse = 23cm. Find the angle

    Answer: 58.6°
  4. 4. Ratio

    Find 17% of 222

    Answer: 37.74
  5. 5. Statistics

    Calculate the mean of: 8, 41, 50, 42, 14, 43, 36, 17

    Answer: 31.4

Tuesday 20 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 3.7 + 2.86 + 0.31?

    Answer: 3.7 + 2.86 + 0.31 = 6.87
  2. 2. Algebra

    Factorise: 2x² + 4x

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

    Opposite = 14cm, adjacent = 19cm. Calculate the angle

    Answer: 36.4°
  4. 4. Ratio

    Simplify: 6:12:10

    Answer: 3:6:5
  5. 5. Statistics

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

    Answer: 38

Wednesday 21 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 150. What are the numbers?

    Answer: 49, 50, and 51
  2. 2. Algebra

    Simplify: 9x - 2x + 4y - 3y

    Answer: 7x + y
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 41cm. Find the angle

    Answer: 55.9°
  4. 4. Ratio

    Simplify: 16:24:12

    Answer: 4:6:3
  5. 5. Statistics

    Calculate the mean of: 12, 35, 31, 19, 50, 33, 33, 15

    Answer: 28.5

Thursday 22 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 226 + 657

    Answer: 226 + 657 = 883
  2. 2. Algebra

    Solve: x7 = 3.1428571428571

    Answer: x = 22
  3. 3. Geometry

    Opposite = 19cm, adjacent = 14cm. Calculate the angle

    Answer: 53.6°
  4. 4. Ratio

    Simplify: 8:12:16

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

    Calculate the mean of: 20, 42, 6, 8, 9, 39, 38, 42

    Answer: 25.5

Friday 23 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Three lengths are 4.67m, 3.27m and 1.81m. What is their total length?

    Answer: 9.75m
  2. 2. Algebra

    Factorise: 4x² + 9x

    Answer: x(4x + 9)
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 34cm. Find the angle

    Answer: 61.9°
  4. 4. Ratio

    Simplify: 12:18:15

    Answer: 4:6:5
  5. 5. Statistics

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

    Answer: 310