Well, let's take a moment to appreciate the number 555. When we round it to the nearest ten, it becomes 560. Isn't that just a happy little number? Just a small adjustment to help it fit in with its closest group of tens.
555
555
555
Six to the nearest ten is ten. Three to the nearest ten is zero.
600
Because sometimes People are incorrect. 555 to the nearest ten is 560.
No, it is not.
No, it's 560
555
560
555 rounded to the nearest 100 is 600.
Yes. 555 rounded to the nearest 100 is 600.
555
540
It is: 600
600 & 560.
The front end estimate is 600. But estimating a single number, in isolation and without context, is a complete waste of time.If I had to add 555 to 1 trillion, I would estimate it as 0. If I had to add 555 to 0.0000000001, I would use the number as given - not use an estimate.