540
12.5577
it makes it easier when u round
Rounding, you see the number and just make it look neater or easier to use. Estimating, you guess a number.
As a Roman numeral 1877 is MDCCCLXXVII
540
12.5577
19.8889
it makes it easier when u round
11
It is 0.7*600 = 420
Rounding, you see the number and just make it look neater or easier to use. Estimating, you guess a number.
It is a compatible number
As a Roman numeral 1877 is MDCCCLXXVII
Rounding is going to the nearest tens, hundreds, thousands etc., depending on the problem. Compatible numbers are numbers the work well with each other. Both of these are estimating.
estimating
A compatible number is a number that is easy to add when you add it together.