Change pack
Lintel Mar 14 - 20 25 questions
PDF (questions) PDF (answers)

Monday 14 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    79000000

    Answer: 7.9 × 107
  2. 2. Algebra

    Factorise: x² - 8x + 12

    Answer: (x - 2)(x - 6)
  3. 3. Geometry

    Adjacent = 19cm, angle = 42°. Find opposite

    Answer: 17.cm
  4. 4. Ratio

    Express the first part of 4:2 as a fraction in simplest form

    Answer: 23
  5. 5. Statistics

    The mean of 6 numbers is 21. If 5 of them are 18, 32, 49, 28, 15, what is the missing number?

    Answer: -16

Tuesday 15 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.006

    Answer: 6 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 4

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

    Hypotenuse = 38cm, angle = 56°. Find adjacent side

    Answer: 21.2cm
  4. 4. Ratio

    Divide 100 in the ratio 1:1:3

    Answer: 20, 20 and 60
  5. 5. Statistics

    Calculate the mean of: 5, 47, 26, 15, 40, 22, 6, 13

    Answer: 21.8

Wednesday 16 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    92000000

    Answer: 9.2 × 107
  2. 2. Algebra

    Factorise: x² + 4x - 5

    Answer: (x + 5)(x - 1)
  3. 3. Geometry

    Adjacent = 17cm, angle = 44°. Find opposite

    Answer: 16.4cm
  4. 4. Ratio

    Simplify: 12:8:10

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

    Calculate the mean of: 11, 29, 10, 32, 10, 43

    Answer: 22.5

Thursday 17 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.022

    Answer: 2.2 × 10-2
  2. 2. Algebra

    Factorise: x² - 7x + 10

    Answer: (x - 2)(x - 5)
  3. 3. Geometry

    Hypotenuse = 34cm, angle = 57°. Find adjacent side

    Answer: 18.5cm
  4. 4. Ratio

    Express the first part of 3:2 as a fraction in simplest form

    Answer: 35
  5. 5. Statistics

    The mean of 4 numbers is 29. If 3 of them are 46, 19, 49, what is the missing number?

    Answer: 2

Friday 18 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0005

    Answer: 5 × 10-4
  2. 2. Algebra

    Factorise: x² - 6x + 8

    Answer: (x - 4)(x - 2)
  3. 3. Geometry

    Hypotenuse = 35cm, angle = 62°. Find adjacent side

    Answer: 16.4cm
  4. 4. Ratio

    Express the first part of 6:4 as a fraction in simplest form

    Answer: 35
  5. 5. Statistics

    The mean of 6 numbers is 39. If 5 of them are 47, 25, 35, 38, 45, what is the missing number?

    Answer: 44