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Lintel May 9 - 15 25 questions
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Monday 9 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0083 in standard form

    Answer: 8.3 × 10-3
  2. 2. Algebra

    Factorise: x² + 11x + 30

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

    Hypotenuse = 35cm, angle = 49°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 22.96cm
  4. 4. Ratio

    Simplify: 16:12:8

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

    Calculate the mean of: 36, 22, 27, 45, 27, 23

    Answer: 30

Tuesday 10 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000024 in standard form

    Answer: 2.4 × 10-5
  2. 2. Algebra

    Factorise: x² - 13x + 12

    Answer: (x - 1)(x - 12)
  3. 3. Geometry

    Adjacent = 15cm, angle = 37°. Find opposite. Give your answer to 2 decimal places

    Answer: 11.3cm
  4. 4. Ratio

    Red and blue beads are in the ratio 10:4. What fraction of the beads are blue?

    Answer: 2⁄7
  5. 5. Statistics

    Calculate the mean of: 15, 47, 47, 24, 49, 13, 11. Give your answer to 2 decimal places

    Answer: 29.43

Wednesday 11 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 36,000 in standard form

    Answer: 3.6 × 104
  2. 2. Algebra

    Factorise: x² - 6x - 27

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

    Hypotenuse = 36cm, angle = 61°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 17.45cm
  4. 4. Ratio

    Simplify: 12:9:9

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

    The mean of 4 numbers is 39. If 3 of them are 42, 39, 31, what is the missing number?

    Answer: 44

Thursday 12 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.039 in standard form

    Answer: 3.9 × 10-2
  2. 2. Algebra

    Factorise: x² + 5x - 6

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

    Adjacent = 14cm, angle = 39°. Find opposite. Give your answer to 2 decimal places

    Answer: 11.34cm
  4. 4. Ratio

    Divide 280 in the ratio 2:2:1

    Answer: 112, 112 and 56
  5. 5. Statistics

    The mean of 4 numbers is 26. If 3 of them are 19, 33, 33, what is the missing number?

    Answer: 19

Friday 13 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 6,800,000 in standard form

    Answer: 6.8 × 106
  2. 2. Algebra

    Factorise: x² - 2x - 15

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

    Hypotenuse = 37cm, angle = 27°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 32.97cm
  4. 4. Ratio

    Express the first part of 7:8 as a fraction in simplest form

    Answer: 7⁄15
  5. 5. Statistics

    Calculate the mean of: 46, 24, 18, 26, 22, 26

    Answer: 27