Decimal
places are overwriting the significant figure rule. The answer should have the
same number of decimal places as the quantity with the least decimal
places. For Example,Calculations
Using Significant Figures
Significant figures in multiplications and divisions
3.7 m +
9.40 m = 13.1 m
2.35 L +
1.2 L = 3.6 L
3.67 kg +
12.498 kg = 16.17 kg
(0.023 m)
x (3.40 m) = 0.078 m2
56.90 s /
2.45 s = 23.2
Significant figures in additions and subtractions
The
product or quotient should have the same number of significant digits as the
quantity with least significant figures.
For Example,