Standard Form (OCR GCSE Maths): Flashcards

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Standard Form
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Standard form formula

a×10na×10^n where aa is between 1-10, nn is an integer

Value of aa in a×10na×10^n

Between 1 and 10

Positive power in standard form: decimal movement

Move right (large number)

Negative power in standard form: decimal movement

Move left (small number)

500,000,000 in standard form

5.0×1085.0×10^8

0.00034 in standard form

3.4×1043.4×10^{-4}

1.02×1061.02×10^6 as decimal

1,020,000

7.6×1057.6×10^{-5} as decimal

0.000076

Multiplying in standard form: rules

Multiply coefficients, add powers

Dividing in standard form: rules

Divide coefficients, subtract powers

Adding/subtracting in standard form: requirement

Must have same power of 1010

After operations, if coefficient not 1-10

Adjust decimal and power to standard form

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