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ScotlandApplications of MathematicsQuick questions

Numeracy

Quick questions on Calculations, scientific notation and rounding - SQA National 5 Applications of Maths

4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is wrong power sign in scientific notation?
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A small number such as 0.00340.0034 uses a negative power (3.4×10−33.4 \times 10^{-3}); a large number uses a positive one.
What is q1?
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Write 0.0008050.000805 in scientific notation. [2 marks]
What is q2?
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Round 7.06497.0649 to 22 decimal places. [1 mark]
What is q3?
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Round 134 920134\,920 to 33 significant figures. [2 marks]

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