Standard Form (AQA GCSE Maths): Flashcards

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Standard Form
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Purpose of standard form

Writing very large/small numbers using powers of 10

Standard form format

A×10nA \times 10^n where 1A<101 \leq A < 10

Range for front number AA in standard form

Between 1 and 10 (1A<101 \leq A < 10)

Sign of power nn for large numbers

Positive

Sign of power nn for small numbers

Negative

35,600 in standard form

3.56×1043.56 \times 10^4

0.0000623 in standard form

6.23×1056.23 \times 10^{-5}

Multiplying in standard form: rule for powers

Add the powers

Dividing in standard form: rule for powers

Subtract the powers

Adding/subtracting in standard form requirement

Powers of 10 must be the same

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