The number that results from that, does it have three significant figures,

even though both of those numbers do have three significant figures?

The number that results from that is 0.43, and it only have two significant figures.

Okay. So just from looking at what's on

this side of the parentheses, the answer from that, remember, can only be to

the hundredths place because I'm using the decimal places when I do subtraction.

That has two significant figures.

I, then, take the number with two significant figures and

divide it by 10.57 to give me an answer of 0.04068,

which I'm going to round to two significant figures, 0.041.

Let's do another example, 3.58 plus 6.73.

In this case,

I have two quantities that each have three significant figures in the measurement.

But both of those measurements were precise to the one hundredth place.

So when I add them together inside the parentheses, I get an answer of 10.31.

That has four significant figures.

Therefore, when I take that four significant figure number and

divide it by a five significant figure number,

my answer needs to be expressed to four significant figures.

Does that make sense?