The front end estimate is 30. But estimating a single number, in isolation and without context, is a complete waste of time. It all comes down to the context of what needs to be done with the number.
If I had to add 28.125 to 1 trillion, I would estimate it as 0.
If I had to add 28.125 to 0.0000000001, I would use the number as given, or possibly the front end estimate. If I had to divide it by 7, I would estimate it as 28, because 28/7=4. If I had to divide it by 10, I would estimate it as 30, because 30/10 = 3.
To the nearest whole number, 28
The answer depends on what you want to use the estimate for. If it is being added to 1 billion, I would estimate it as 0. If adding to 25000, I would estimate it as 15000 and if adding to 0.075, I would leave it as it is.
Most people would estimate that as 6 (an overestimate) + 4 (an underestimate) which would estimate the answer as 10, which is an underestimate.
I would estimate that your chances are pretty good.
The answer depends on why you wish to estimate.If the question is 95*205 I would estimate 95 by 100. If the question is 95*85 I would estimate 95 by 90.
The front end estimate is 800.However, if I needed to add 750 to 1 billion, I would estimate 750 by 0 while if I wanted to add 750 to 0.001, I would use 750 as it is - not an estimate.
Rounded to two decimal places, sqrt(28125) = ±167.71.
3125, 6250, 9375, 12500, 15625, 18750, 21875, 25000, 28125, 31250, 34375, . . .
75 would be 20% of 375. In order to find 10% of any number simply move your decimal point one place value towards the left.
The answer depends on what you want to use the estimate for. If it is being added to 1 billion, I would estimate it as 0. If adding to 25000, I would estimate it as 15000 and if adding to 0.075, I would leave it as it is.
900 would be a fair estimate
It depends on what I want to do with it. If I want to add 25 to it, I would estimate it as it stands but if I wanted to add 12365458756215486249868815 to it, I would estimate it as 0.In general, I would probably estimate it as 2.2*108.
I would estimate it as 712.9
900 would be a fair estimate
The answer depends on what you wish to do with the number.For 53.54/9 I would estimate it as 54. For 53.54*62 I would estimate it as 55.
If you estimate well, you get exactly 291.
explain how you would estimate to subtrac 189 from 643
Most people would estimate that as 6 (an overestimate) + 4 (an underestimate) which would estimate the answer as 10, which is an underestimate.