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
To check your answer when multiplying by estimating, round the numbers involved to the nearest convenient value. Then, perform the multiplication using these rounded numbers to get an estimated product. Compare this estimate to your original answer; if they are close, your calculation is likely correct. If the estimated product significantly differs from your answer, you may need to recheck your calculations.
8.216 or 8.2237 are two possible numbers.
radius
Some people find it easier to add or subtract whole numbers but yes, you could round to the nearest half.
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.
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
To check your answer when multiplying by estimating, round the numbers involved to the nearest convenient value. Then, perform the multiplication using these rounded numbers to get an estimated product. Compare this estimate to your original answer; if they are close, your calculation is likely correct. If the estimated product significantly differs from your answer, you may need to recheck your calculations.
They both round down to zero.
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.
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.
31
8.216 or 8.2237 are two possible numbers.