# How do you round 65.145 meters to 4 significant figures?

##### 1 Answer

May 20, 2017

#### Explanation:

Step 1. Underline the first four numbers (4 significant figures)

Step 2. Round up or down based on the 5th value

Rules for rounding:

- If the next number is 5 or more, round up

- If the next number is 4 or less, round down

- Non significant figures all become zero

- If the final, non-significant numbers are to the right of the decimal, then delete these final numbers

Step 3. Round up and turn the last digit(s) to zero. If the final, non-significant numbers are *to the right of the decimal*, then delete them all together.