DECIMALS
Review of Introductory Mathematics
Example:
Round off the following number to three decimal places.
6.2385
Solution:
Step 1:
5 is the number to the right of the 3rd decimal place.
Step 2:
5 is equal to 5, so drop the 5 and add one to the number in the
third decimal place (8 + 1 = 9).
Step 3:
6.239 is the number rounded to three decimal places.
Example:
Divide 2.25 by 6 and round off the answer to 1 decimal place.
= 0.375
2.25
6
Solution:
Step 1:
7 is the number to the right of the 1st
decimal place.
Step 2:
7 is greater than 5, so drop the 7 and
add one to the number in the first
decimal place (3 + 1 = 4).
Step 3:
0.4 is .375 rounded to 1 decimal
place.
MA-01
Page 46
Rev. 0
