Rules for Rounding
| Rule | Example |
| If the digit immediately to the
right of the last significant figure you want to retain is
Greater than 5, increase the last digit by 1. Less than 5, do not change the last digit. 5, followed by nonzero digit(s), increase the last digit by 1. 5, not followed by a nonzero digit and preceded by odd digit(s), increase the last digit by 1. 5, not followed by nonzero digit(s), and the preceding significant digit is even, do not change the last digit. |
56.87 g --> 56.9 g 12,02 L --> 12.0 L 3.7851 --> 3.79 2.835 s --> 2.84 s 2.65 mL --> 2.6 mL
|
"Round even" after calculating result with calculator.