Question

Estimate 3168 divided 47 by first rounding each number so that it has only 1 nonzero digit.

Answer 1

60

Explanation:

3168 rounds to 3000

47 rounds to 50

So the estimate is 3000/50 = 60

Note: you are not looking for an exact answer. You are looking for a number that you can do in you head that tells you if you are doing it correctly.

The exact answer is 67.4 which is close to the estimated answer., but 60 is the answer you should feed in.