201.87 rounds to 202. it would not be 201 because you have to use the 8 as your rounding digit. 8 rounds up so it become 202.
0.0034088 in three significant figures would be 0.00341
201
31,500
0.990
21.3
It is: 1040
0.00241
130
The number 10.989 rounded to 3 significant figures is 11.0
It's already there.
6.71 is 6.7050 is rounded to three significant figures.
The number 2747 written to three significant figures is 2750. When rounding to three significant figures, the third digit (4) is followed by a 7, which means we round up. Thus, 2747 becomes 2750, preserving the three significant figures.