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Lintel Jul 11 - 17 25 questions
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Monday 11 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 910,000 in standard form

    Answer: 9.1 × 105
  2. 2. Algebra

    Factorise: x² + x - 132

    Answer: (x + 12)(x - 11)
  3. 3. Geometry

    Adjacent = 23cm, angle = 52°. Find opposite. Give your answer to 2 decimal places

    Answer: 29.44cm
  4. 4. Ratio

    Simplify: 4:4:10

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

    The mean of 4 numbers is 23. If 3 of them are 16, 21, 25, what is the missing number?

    Answer: 30

Tuesday 12 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.00085 in standard form

    Answer: 8.5 × 10-4
  2. 2. Algebra

    Factorise: x² + 21x + 108

    Answer: (x + 12)(x + 9)
  3. 3. Geometry

    Hypotenuse = 37cm, angle = 26°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 33.26cm
  4. 4. Ratio

    Express the second part of 5:11 as a fraction in simplest form

    Answer: 11⁄16
  5. 5. Statistics

    The mean of 5 numbers is 28. If 4 of them are 34, 18, 22, 16, what is the missing number?

    Answer: 50

Wednesday 13 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 83,000 in standard form

    Answer: 8.3 × 104
  2. 2. Algebra

    Factorise: x² - 3x - 70

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

    Adjacent = 26cm, angle = 44°. Find opposite. Give your answer to 2 decimal places

    Answer: 25.11cm
  4. 4. Ratio

    Orange and purple beads are in the ratio 10:5. What fraction of the beads are purple?

    Answer: 1⁄3
  5. 5. Statistics

    Calculate the mean of: 48, 38, 47, 9, 36, 5, 30. Give your answer to 2 decimal places

    Answer: 30.43

Thursday 14 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 11,000,000 in standard form

    Answer: 1.1 × 107
  2. 2. Algebra

    Factorise: x² - 4x - 21

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

    Adjacent = 18cm, angle = 48°. Find opposite. Give your answer to 2 decimal places

    Answer: 19.99cm
  4. 4. Ratio

    £400.00 is shared between A and B in the ratio 5:3. How much does A receive?

    Answer: £250.00
  5. 5. Statistics

    The mean of 4 numbers is 32. If 3 of them are 21, 15, 49, what is the missing number?

    Answer: 43

Friday 15 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Write 0.0027 in standard form

    Answer: 2.7 × 10-3
  2. 2. Algebra

    Factorise: x² - 21x + 110

    Answer: (x - 10)(x - 11)
  3. 3. Geometry

    Hypotenuse = 24cm, angle = 52°. Find adjacent side. Give your answer to 2 decimal places

    Answer: 14.78cm
  4. 4. Ratio

    £150.00 is shared between A and B in the ratio 2:1. How much does A receive?

    Answer: £100.00
  5. 5. Statistics

    Calculate the mean of: 25, 44, 48, 24, 32, 46, 39, 33. Give your answer to 2 decimal places

    Answer: 36.38