Answers

2015-11-10T20:21:32+08:00
First way of estimating it is to round the two numbers to the nearest hundreds tgen add. So 368 will become 400 and 231 will become 200. So the total sum is 600.
The second way is to add the both they round the sum. So, 368+231=599
599 will become 600.
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2015-11-13T17:52:23+08:00
The first way is before you add those given number estimate the both of them


Or you can add those given number first then estimate the answer.
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