The front end estimate is 300. But estimating a single number, in isolation and without context, is a complete waste of time. It all comes down to the context of what needs to be done with the number.
If I had to add 328 to 1 trillion, I would estimate it as 0.
If I had to add 328 to 0.0000000001, I would use the number as given, or possibly the front end estimate. If I had to divide it by 3, I would estimate it as 330, because 330/3 = 110. If I had to divide it by 40, I would estimate it as 320, because 320/40= 8.
328 = 328
19% of 328= 19% * 328= 0.19 * 328= 62.32
The product is 328
what is 328 in half
732-328 = 404
0.0488
3.28 = 328/100 and 82/25 and simplifies to: 37/25
164
80% of 328 is 262.4
-328 + 179 = -149
328 + 67 = 395
212 out of 328 is 65%.