416.000
To the nearest thousand, zero.
To the nearest thousandth, it's already there.
34921.000
416 rounded to the nearest ten is 420 and when rounded to the nearest hundreds is 400.
0.660
27.550
31.623
8.924
It is 6.981 when rounded to the nearest thousandth
34921.000
88.564
70.659
0.370
145 is rounded to the nearest ones. 145 rounded to the nearest thousandth is 145.000
800.130
174.689
8.246
287.287
32.346