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Lintel Jun 7 - 13 25 questions
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Monday 7 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    4100000

    Answer: 4.1 × 106
  2. 2. Algebra

    Factorise: x² + 3x - 4

    Answer: (x + 4)(x - 1)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 27°. Find adjacent side

    Answer: 20.5cm
  4. 4. Ratio

    Express the first part of 5:3 as a fraction in simplest form

    Answer: 58
  5. 5. Statistics

    The mean of 6 numbers is 27. If 5 of them are 41, 37, 47, 46, 23, what is the missing number?

    Answer: -32

Tuesday 8 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    790000

    Answer: 7.9 × 105
  2. 2. Algebra

    Factorise: x² + x - 30

    Answer: (x + 6)(x - 5)
  3. 3. Geometry

    Hypotenuse = 17cm, angle = 31°. Find adjacent side

    Answer: 14.6cm
  4. 4. Ratio

    Divide 261 in the ratio 3:2:4

    Answer: 87, 58 and 116
  5. 5. Statistics

    The mean of 4 numbers is 26. If 3 of them are 15, 33, 49, what is the missing number?

    Answer: 7

Wednesday 9 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00087

    Answer: 8.7 × 10-4
  2. 2. Algebra

    Factorise: x² - 4x + 4

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

    Adjacent = 24cm, angle = 37°. Find opposite

    Answer: 18.cm
  4. 4. Ratio

    Express the first part of 2:5 as a fraction in simplest form

    Answer: 27
  5. 5. Statistics

    Calculate the mean of: 7, 47, 39, 38, 12, 10, 5, 6

    Answer: 20.5

Thursday 10 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0017

    Answer: 1.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 9x + 20

    Answer: (x - 5)(x - 4)
  3. 3. Geometry

    Hypotenuse = 40cm, angle = 50°. Find adjacent side

    Answer: 25.7cm
  4. 4. Ratio

    Express the first part of 4:3 as a fraction in simplest form

    Answer: 47
  5. 5. Statistics

    Calculate the mean of: 17, 32, 42, 14, 13, 18, 41, 45

    Answer: 27.8

Friday 11 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    73000000

    Answer: 7.3 × 107
  2. 2. Algebra

    Factorise: x² + 2x - 3

    Answer: (x + 3)(x - 1)
  3. 3. Geometry

    Adjacent = 27cm, angle = 53°. Find opposite

    Answer: 35.8cm
  4. 4. Ratio

    Express the first part of 4:5 as a fraction in simplest form

    Answer: 49
  5. 5. Statistics

    The mean of 4 numbers is 20. If 3 of them are 50, 36, 48, what is the missing number?

    Answer: -54