Question

What is the value of 12,437 when rounded to four significant figures?

Answer 1

`ul1 ul2 ul4 ul4 0`

Explanation:

Step 1. Underline the first four numbers (4 significant figures)
`ul1 ul2 ul4 ul3 7`

Step 2. Round up or down based on the 5th value
`ul1 ul2 ul4 ul3 color(red)(7)`

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

Step 3. Round up and turn the last digit(s) to zero.
`ul1 ul2 ul4 ul4 0`