35.674
35.67381216 rounded to the nearest thousandth is 35.674
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1".
In this problem, the first figure to be discarded is 8, then the previous figure which is 3 is increased by 1 and becomes 4.
34921.000
31.623
3.330
The number 66.514 is already rounded to the nearest thousandth.
1.171
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