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

1 Answer
May 20, 2017

#ul1 ul2 ul4 ul4 0#


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#