Examples - Significant Figures, Accuracy, and Rounding Off

Example 1.1

Perform the operations with the approximate numbers and round off to the appropriate level of accuracy.

Solution:

a. 532.6 + 4.02 + 0.036 = 536.656 @ 536.7 (as determined by 532.6)
b. 0.04 + 0.003 + 0.0064 = 0.0494 @ 0.05 (as determined by 0.04).

Example 1.2
Round off the numbers to the hundredths place.

Solution:

a. 32.419 = 32.42
b. 0.05328 = 0.05

Example 1.3
Round off the result 5.8764 to
a. tenths-place accuracy.
b. hundreths-place accuracy.

c. tousandths-place accuracy.

Solution:
a. 5.9
b. 5.88
c. 5.876