look behind you if you want to know cuz I'll be there for you
You can check by using your estimated number and comparing it with your exact quotient.
When it would take much too much time to find an exact number and you don't need it to be exact.
no answer :I srry
It is easy enough to divide by 3, to give the exact quotient as 7.3
649.4444
38*2 = 76 so 7600 is 200 That leaves 259 which is around 7 so I would say 207. The exact answer is 206.82
12.25
465
Estimating is usually quicker and simpler than finding the exact value and a good estimate can often be sufficiently accurate for the purposes.
You can estimate when an exact answer is not needed.
If you have the exact value, why do you need to estimate!
Months have a variable number of days, so you can't get an exact answer here. Divide the number of days by 30, or by 30.5, to get an estimate of the number of months.