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Obtain an estimate for the fallen competition by rounding a number so that the resulting arithmetic can easily be performed by hand or in head. Then, use a calculator to perform the computation. How reasonable is your estimate when compared to the actual answer?
319 + 579
Round the two numbers to the nearest 10. An estimate of the sum is?

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22stolc

Answer:

An estimate of the sum is 900

Step-by-step explanation:

Round each number to the nearest 10

319 = 320               579 = 580

Add both numbers together

320 + 580 = 900 is the estimated answer

Now use the original numbers and add them together

319 + 579 = 898 is the actual answer

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