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
(0.023 m) x (3.40 m) = 0.078 m2
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,
56.90125 s / 2.45 s
= 23.2
2 sigfigs x 3 sigfigs → 2 sigfigs
2.354 L + 1.2 L = 3.6 L
3.67 kg + 12.498167 kg = 16.17 kg
tenths place + hundredths
place → tenths place