2 significant figures.
153.7 to 2 significant figures is 150.
100 has one, 150 has 2, 250 has 2.
147.658 to two significant figures is 150.
How many significant figures are in 20.8
3 significant figures.
It has 3 significant figures.
153.7 to 2 significant figures is 150.
It would appear to have 2 significant figures, but if there is a decimal place after the 0 (so, 150.) then it is three.
151.208 to 2 significant figures is 150.
100 has one, 150 has 2, 250 has 2.
147.658 to two significant figures is 150.
How many significant figures are in 20.8
The number whose farthest right significant digit determines it. Whatever place that digit is in is the last significant digit in the sum. For example: 433 + 150 + 3.67 + 8000 = 8586.67, but in sig figs this is only 9000, as the thousands digit is the lowest digit that can be represented.
There are 3 significant figures in 94.2.
5 significant figures.
There are four significant figures in 0.1111.
4 significant figures.