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All main topics / Mathematics / General / AQA Module 3 Foundation
9
Estimate the answer to 8.78 x 3.92 - 5.24
31

Round each number to one significant figure...

9 x 4 - 5 = 36 - 5 = 31

Remember
When the questions says estimate you will not get marks if you just work it out so do what it says - round the numbers first!!!
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Flashcard info:
Author: mrfoxton
Main topic: Mathematics
Topic: General
Published: 07.02.2010

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