Numbers that end in a digit of 4 or less should be rounded DOWN to the nearest ten.
Example: 24 rounded to the nearest ten would be 20
Numbers that end in a digit of 5 or more should be rounded UP to the nearest ten.
Example: 28 rounded to the nearest ten would be 30
Wiki User
∙ 13y agoEstimate by rounding to the nearest ten.​ Then, find the sum.221122plus+33554455​_​_The estimated sum is nothing.
54+86
3
When you decrease both addends when rounding to add, the estimated sum will also be decreased. Rounding down the addends will result in a smaller value for the estimated sum.
841 would round down to 840 and 362 would round down to 360. So 840+360=1200. The sum is about 1200.
Estimate by rounding to the nearest ten.​ Then, find the sum.221122plus+33554455​_​_The estimated sum is nothing.
rounding
3000
54+86
12,825
3
7.000
900
A mathematician in a hurry or one who is only interested in an approximate answer does it.
106 + 091 = 197 100 + 100 = 200 Answer: 3
You can calculate 3444 times 670 without rounding or you can estimate it WITH rounding. But you cannot estimate it without rounding.
400 + 500 = 900