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Lintel May 2 - 8 25 questions
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Monday 2 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 950,000,000 in standard form

    Answer: 9.5 × 108
  2. 2. Algebra

    Factorise: x² + 3x - 4

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

    Adjacent = 30cm, angle = 35°. Find opposite. Give your answer to 2 decimal places

    Answer: 21.01cm
  4. 4. Ratio

    In ratio 9:3:10, what fraction is the third part?

    Answer: 5⁄11
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 37, 37, 15, what is the missing number?

    Answer: 39

Tuesday 3 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000071 in standard form

    Answer: 7.1 × 10-5
  2. 2. Algebra

    Factorise: x² - 7x - 18

    Answer: (x + 2)(x - 9)
  3. 3. Geometry

    Hypotenuse = 25cm, angle = 39°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 19.43cm
  4. 4. Ratio

    Red, blue and green sweets are in the ratio 8:7:8. What fraction of the sweets are red?

    Answer: 8⁄23
  5. 5. Statistics

    Calculate the mean of: 31, 31, 19, 12, 32, 32, 39

    Answer: 28

Wednesday 4 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.000046 in standard form

    Answer: 4.6 × 10-5
  2. 2. Algebra

    Factorise: x² + 6x - 7

    Answer: (x + 7)(x - 1)
  3. 3. Geometry

    Hypotenuse = 15cm, angle = 27°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 13.37cm
  4. 4. Ratio

    Red and blue counters are in the ratio 7:2. What fraction of the counters are blue?

    Answer: 2⁄9
  5. 5. Statistics

    The mean of 5 numbers is 28. If 4 of them are 30, 49, 18, 29, what is the missing number?

    Answer: 14

Thursday 5 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 120,000,000 in standard form

    Answer: 1.2 × 108
  2. 2. Algebra

    Factorise: x² - 22x + 120

    Answer: (x - 10)(x - 12)
  3. 3. Geometry

    Adjacent = 22cm, angle = 60°. Find opposite. Give your answer to 2 decimal places

    Answer: 38.11cm
  4. 4. Ratio

    Orange and purple sweets are in the ratio 8:7. What fraction of the sweets are orange?

    Answer: 8⁄15
  5. 5. Statistics

    Calculate the mean of: 42, 42, 19, 37, 35, 27. Give your answer to 2 decimal places

    Answer: 33.67

Friday 6 May 2016

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 + x - 2

    Answer: (x + 2)(x - 1)
  3. 3. Geometry

    Hypotenuse = 16cm, angle = 62°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 7.51cm
  4. 4. Ratio

    Express the first part of 7:10 as a fraction in simplest form

    Answer: 7⁄17
  5. 5. Statistics

    Calculate the mean of: 36, 29, 10, 22, 45, 22. Give your answer to 2 decimal places

    Answer: 27.33