Examples of Math Problems: Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens)of the following 439+334+4317?

Thursday, April 3, 2014

Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens)of the following 439+334+4317?

a)

400+300+4300=5000

b)
440+330+4320=5090

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