Question 2 of 18 in Number 5

Number 5

1 mark · Easy

Calculate 5.86 + 12.3 and give your answer correct to 3 significant figures.

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18.2 (±0.05)

Also accept: 18.16; 18.166

Common mistakes: 18.1; 18.17

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Marking points

A1 · 1 mark · Answer to 3 significant figures: 18.2

Worked solution

Rounding 18.16 to 3 significant figures gives 18.2

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