Change pack
Lintel Oct 20 - 26 25 questions
PDF (questions) PDF (answers)

Monday 20 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0009 in standard form

    Answer: 9 × 10-4
  2. 2. Algebra

    Factorise: x² - 2x - 24

    Answer: (x + 4)(x - 6)
  3. 3. Geometry

    Hypotenuse = 21cm, angle = 60°. Find adjacent side

    Answer: 10.5cm
  4. 4. Ratio

    Divide 112 in the ratio 3:2:2

    Answer: 48, 32 and 32
  5. 5. Statistics

    The mean of 6 numbers is 36. If 5 of them are 42, 47, 30, 17, 21, what is the missing number?

    Answer: 59

Tuesday 21 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 270,000,000 in standard form

    Answer: 2.7 × 108
  2. 2. Algebra

    Factorise: x² - 5x - 6

    Answer: (x + 1)(x - 6)
  3. 3. Geometry

    Adjacent = 21cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 36.37cm
  4. 4. Ratio

    Divide 208 in the ratio 1:3:4

    Answer: 26, 78 and 104
  5. 5. Statistics

    Calculate the mean of: 9, 27, 48, 25, 34, 26, 24. Give your answer to 2 decimal places

    Answer: 27.57

Wednesday 22 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0061 in standard form

    Answer: 6.1 × 10-3
  2. 2. Algebra

    Factorise: x² - 2x - 80

    Answer: (x + 8)(x - 10)
  3. 3. Geometry

    Hypotenuse = 23cm, angle = 53°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.84cm
  4. 4. Ratio

    Simplify: 10:12:12

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

    Calculate the mean of: 11, 23, 46, 9, 42, 26, 24. Give your answer to 2 decimal places

    Answer: 25.86

Thursday 23 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 16,000,000 in standard form

    Answer: 1.6 × 107
  2. 2. Algebra

    Factorise: x² - 8x - 20

    Answer: (x + 2)(x - 10)
  3. 3. Geometry

    Adjacent = 10cm, angle = 31°. Find opposite. Give your answer to 2 decimal places

    Answer: 6.01cm
  4. 4. Ratio

    Express the first part of 13:10 as a fraction in simplest form

    Answer: 13⁄23
  5. 5. Statistics

    The mean of 5 numbers is 26. If 4 of them are 16, 23, 25, 34, what is the missing number?

    Answer: 32

Friday 24 October 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 53,000 in standard form

    Answer: 5.3 × 104
  2. 2. Algebra

    Factorise: x² - x - 90

    Answer: (x + 9)(x - 10)
  3. 3. Geometry

    Adjacent = 18cm, angle = 44°. Find opposite. Give your answer to 2 decimal places

    Answer: 17.38cm
  4. 4. Ratio

    Simplify the ratio m : 40cm

    Answer: 5:2
  5. 5. Statistics

    Calculate the mean of: 43, 32, 35, 11, 27, 34, 39. Give your answer to 2 decimal places

    Answer: 31.57