Review of Introductory Mathematics
SIGNIFICANT DIGITS
When multiplying or dividing numbers that represent measurements, the product or quotient has
the same number of significant digits as the multiplied or divided number with the least number
of significant digits.
Example:
3.25 inches x 2.5 inches = 8.1 inches squared
Summary
The important information from this chapter is summarized below.
Significant Digits Summary
Significant digits are determined by counting the number of digits from the most
significant digit to the least significant digit.
When adding or subtracting numbers which represent measurements, the right-
most significant digit in the sum is in the same position as the left-most
significant digit in the numbers added or subtracted.
When multiplying or dividing numbers that represent measurements, the product
or quotient has the same number of significant digits as the multiplied or divided
number with the least number of significant digits.
Rev. 0
Page 55
MA-01
