Early estimation can help give an indication of the answer.
I just read the answer and it doesn't help what so ever
It can be very helpful, so the question is inappropriate.
yes
It is not always the case. I would not bother to estimate 3+5 before getting the actual answer because (for me) the effort involved is the same.Having said that, with complicated calculations, having an estimate can help decide whether it is likely that your calculation is correct.
It is helpful because when you are finished estimating (for example: multpliying, diving, adding or subtracting) it's like checking your work that's why it can be helpful to estimate before finding the actual product.
Early estimation can help give an indication of the answer.
I just read the answer and it doesn't help what so ever
It can be very helpful, so the question is inappropriate.
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.
Yes.
yes
because it is helpful so u can round to finds answer also a lot people like rounding.
Yes
True
It is not always the case. I would not bother to estimate 3+5 before getting the actual answer because (for me) the effort involved is the same.Having said that, with complicated calculations, having an estimate can help decide whether it is likely that your calculation is correct.
Estimating is usually quicker and simpler than finding the exact value and a good estimate can often be sufficiently accurate for the purposes.