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BIDMAS

discia.org 10 questions · 20 marks
Name Date
  1. Either paper 1 mark

    Work out \(12 + 3 \times 9\)

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    \(39\)
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  2. Either paper 2 marks
    (a)

    Work out \(7 + 5 \times 7\)

    (b)

    Work out \((7 + 5) \times 7\)

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    (a) \(42\)
    (b) \(84\)
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  3. Either paper 2 marks

    Find the value of \(4 \times 9 - 90 \div 9\)

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    \(26\)
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  4. Either paper 2 marks
    (a)

    Work out \((3 \times 6)^2\)

    (b)

    Work out \(3 \times 6^2\)

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    (a) \(324\)
    (b) \(108\)
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  5. Either paper 2 marks

    Work out \(\sqrt{ 15 + 10 } \times 9\)

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    \(45\)
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  6. Either paper 2 marks
    (a)

    Work out \(19 - 12 + 16\)

    (b)

    Work out \(75 \div 5 \times 3\)

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    (a) \(23\)
    (b) \(45\)
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  7. Either paper 2 marks

    Work out the number that the box is covering.

    \(4 + \square \times 7 = 25\)

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    \(3\)
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  8. Either paper 3 marks
    Here are three calculations.
    A\(15 + 6 \times 9\)
    B\(15 \times 6 - 9\)
    C\(9 \times (15 - 6) + 15\)
    Work out the answer to each calculation. Write the letters A, B and C in order of their answers, starting with the smallest.
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    A, B, C
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  9. Either paper 2 marks

    Work out the value of \((3 + 6)^2 - 3 \times 8\)

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    \(57\)
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  10. Either paper 2 marks

    Insert one pair of brackets into the calculation below to make it correct.

    \(2 + 6 \times 6 - 8 = 40\)

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    \((2 + 6) \times 6 - 8 = 40\)
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discia.org BIDMAS · sheet 1
Answers BIDMAS · sheet 1
  1. \(39\)
  2. (a) \(42\)
    (b) \(84\)
  3. \(26\)
  4. (a) \(324\)
    (b) \(108\)
  5. \(45\)
  6. (a) \(23\)
    (b) \(45\)
  7. \(3\)
  8. A, B, C
  9. \(57\)
  10. \((2 + 6) \times 6 - 8 = 40\)
discia.org BIDMAS · sheet 1