Yes but, if you can, you should try to round one up and the other down. Unless that results in rounding well away from the number.
For example, 48*62
Exact answer = 2976
If you round 48 up to 50, 62 down to 60
Estimate = 50*60 = 3000 (estimation error = +0.8%)
But if you had 48*68
Exact answer = 3264
Round up and down: 50*60 = 3000 (estimation error = -8.1% )
Round down and up: 40*70 = 2800 (estimation error= -14.2%)
Round up and up: 50*70 = 3500 (estimation error = +7.2%)
The last still has a large error but it is the smallest of the these.
it makes it easier when u round
radius
8.216 or 8.2237 are two possible numbers.
Some people find it easier to add or subtract whole numbers but yes, you could round to the nearest half.
When estimating the sum of 48765 and 9221, you can round each number to the nearest thousand. 48765 rounds to 49000, and 9221 rounds to 9000. Adding these rounded numbers gives you an estimated sum of 58000. To estimate the difference, you can round 48765 to 49000 and 9221 to 9000. Subtracting these rounded numbers gives you an estimated difference of 4000.
it makes it easier when u round
Yes.
Estimating quotients is like trying to guess how many slices of cake you'll get from a whole cake, while estimating products is like trying to figure out how much money you'll have after buying a certain number of cakes. In both cases, you're making an educated guess based on the numbers involved, but the end result is either a quotient (division) or a product (multiplication). So, in a nutshell, estimating quotients involves dividing and estimating products involves multiplying.
When both of the fractions are not even mixed numbers!
0.89
it would not be a good time to estimate mixed numbers is when both of the fractions are not a mixed number
6.232 6.236
Estimating is a guess that should be close to the answer. Round is rounding a number up to the nearest ten, hundred. Example $345.89 round to the nearest dollar is $345.
They both round down to zero.
It is not as helpful when multiplying very small numbers because the numbers are going to be very east to answer. That is why estimating is not as helpful when multiplying very small numbers.
radius
does it really matter