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Lintel Feb 29 - Mar 6 25 questions
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Monday 29 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00064 in standard form

    Answer: 6.4 × 10-4
  2. 2. Algebra

    Factorise: x² - x - 90

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

    Hypotenuse = 25cm, angle = 59°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 12.88cm
  4. 4. Ratio

    Simplify: 12:20:16

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

    Calculate the mean of: 11, 49, 22, 38, 13, 50, 11. Give your answer to 2 decimal places

    Answer: 27.71

Tuesday 1 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 3,000,000 in standard form

    Answer: 3 × 106
  2. 2. Algebra

    Factorise: x² + 6x + 9

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

    Hypotenuse = 35cm, angle = 47°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.87cm
  4. 4. Ratio

    Express the first part of 11:15 as a fraction in simplest form

    Answer: 11⁄26
  5. 5. Statistics

    Calculate the mean of: 36, 44, 40, 15, 11, 36, 29. Give your answer to 2 decimal places

    Answer: 30.14

Wednesday 2 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0073 in standard form

    Answer: 7.3 × 10-3
  2. 2. Algebra

    Factorise: x² + 17x + 70

    Answer: (x + 10)(x + 7)
  3. 3. Geometry

    Adjacent = 27cm, angle = 45°. Find opposite

    Answer: 27cm
  4. 4. Ratio

    Express the second part of 2:12 as a fraction in simplest form

    Answer: 6⁄7
  5. 5. Statistics

    Calculate the mean of: 19, 25, 26, 38, 22, 45, 24, 5

    Answer: 25.5

Thursday 3 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 190,000 in standard form

    Answer: 1.9 × 105
  2. 2. Algebra

    Factorise: x² + 3x - 40

    Answer: (x + 8)(x - 5)
  3. 3. Geometry

    Hypotenuse = 27cm, angle = 45°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.09cm
  4. 4. Ratio

    Red and blue counters are in the ratio 6:5. What fraction of the counters are blue?

    Answer: 5⁄11
  5. 5. Statistics

    The mean of 4 numbers is 30. If 3 of them are 42, 16, 21, what is the missing number?

    Answer: 41

Friday 4 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 87,000,000 in standard form

    Answer: 8.7 × 107
  2. 2. Algebra

    Factorise: x² - 5x - 14

    Answer: (x + 2)(x - 7)
  3. 3. Geometry

    Hypotenuse = 21cm, angle = 48°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.05cm
  4. 4. Ratio

    Simplify the ratio 4 litres : 150 ml

    Answer: 80:3
  5. 5. Statistics

    Calculate the mean of: 33, 5, 42, 35, 30, 18, 10, 47

    Answer: 27.5