The answer depends on the units used for 2.500 It should be obvious to anybody that the answer for 2.500 kilograms will be different from the answer for 2.500 ounces.
3 g
first round off the two numbers you are dividing to the nearest one. For example 9.5/1.5, round it off to 10/2 which will equal to 5.
An estimate is an educated guess. Approximate and round off mean "about".
14,000
5499. To round to the nearest thousand, the hundreds digit would be the decider: if 5 or more it would round up, 4 or less would round down. Need to round down, so the hundreds digit must be 4. The tens and units make no difference, so have them as large are possible, namely 9 each, to give: 5499 as the largest whole number that rounds to 5000 to the nearest 1000. A quick way is to observe 1000/2 = 500, so need to add 1 less than this (499) to the number and it will round down, that is 5000 + 1000/2 - 1 = 5000 + 500 - 1 = 5499.
It is 4.486
2g
2,223,000 grams
Round off to the nearest cent, means round off to the nearest hundredths or round off to two decimal.
3000
4 g
if you round off to the nearest one then its 41, if you round off to the nearest ten, it is 40.
How do you round off 14.045 to the nearest 0.1 kg
10.93 g is equivalent to 10.9 g when rounded off to the nearest tenth of a gram.
14,304 rounded to the nearest thousand is 14,000
950
549 and 450 rounded off the nearest hundred is 500
372 rounded to the nearest hundred is 400