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Lintel Apr 8 - 14 25 questions
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Monday 8 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 2,300,000 in standard form

    Answer: 2.3 × 106
  2. 2. Algebra

    Factorise: x² - 9x - 10

    Answer: (x + 1)(x - 10)
  3. 3. Geometry

    Hypotenuse = 33cm, angle = 25°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 29.91cm
  4. 4. Ratio

    Simplify: 12:10:10

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

    Calculate the mean of: 11, 14, 30, 9, 15, 33. Give your answer to 2 decimal places

    Answer: 18.67

Tuesday 9 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000095 in standard form

    Answer: 9.5 × 10-5
  2. 2. Algebra

    Factorise: x² - 6x - 27

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

    Adjacent = 23cm, angle = 46°. Find opposite. Give your answer to 2 decimal places

    Answer: 23.82cm
  4. 4. Ratio

    Divide 72 in the ratio 2:1:3

    Answer: 24, 12 and 36
  5. 5. Statistics

    The mean of 4 numbers is 36. If 3 of them are 31, 17, 27, what is the missing number?

    Answer: 69

Wednesday 10 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.086 in standard form

    Answer: 8.6 × 10-2
  2. 2. Algebra

    Factorise: x² + 5x + 6

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

    Hypotenuse = 34cm, angle = 29°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 29.74cm
  4. 4. Ratio

    Divide 144 in the ratio 2:1:1

    Answer: 72, 36 and 36
  5. 5. Statistics

    The mean of 5 numbers is 40. If 4 of them are 33, 36, 44, 43, what is the missing number?

    Answer: 44

Thursday 11 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 550,000 in standard form

    Answer: 5.5 × 105
  2. 2. Algebra

    Factorise: x² - x - 90

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

    Adjacent = 30cm, angle = 36°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.8cm
  4. 4. Ratio

    Simplify: 15:6:12

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

    Calculate the mean of: 20, 50, 23, 26, 8, 14, 27

    Answer: 24

Friday 12 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0087 in standard form

    Answer: 8.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 3x - 54

    Answer: (x + 6)(x - 9)
  3. 3. Geometry

    Hypotenuse = 37cm, angle = 51°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 23.28cm
  4. 4. Ratio

    Simplify: 8:10:6

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

    Calculate the mean of: 23, 22, 8, 13, 12, 45

    Answer: 20.5