Using estimation, what is the product of 8.6 x 4.1?

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1 Answer
Jim G.
Sep 18, 2016

approximately 36

Explanation:

To obtain an estimate we require to 'round' the given numbers to the nearest whole number.

8.6 is more than half way to 9, 8.5 is half way. Thus 8.6 is nearer to 9 than 8.

4.1 is nearer to 4 than it is to 5.

As an estimate to the product use 9 and 4

#8.6xx4.1≈9xx4=36larr" is the estimate"#

#≈" means approximately"#

The actual answer is 35.26

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