00:01
And this problem will probably be easier just to do our five calculations and then report them to the correct number of significant figures.
00:12
This answer will be reported to the ones place.
00:17
So i have 48 .1 plus 18 minus 2.
00:23
This will be reported to 64 .1 and the correct answer will be to the ones place, 64.
00:31
So this will have two significant figures.
00:35
That's our first one and i'm going to make a note here.
00:43
Let's report to fewest decimal places, which would be the two to the ones place.
01:03
Next for a second problem, we've got 23 .852 and we're dividing that by 4 .184.
01:22
We're taking that times 5 .01 before rounding 23 .852 times 5 .01 divided by 4 .184.
01:35
Oh, that's cute.
01:36
That's so this will be 28 .5608 and some more.
01:42
So the correct answer for here will be to three significant figures 28 .6.
01:47
This is three significant figures and report to fewest or the least precise number is 5 .01, which has three sig figs.
02:25
Okay, for my third 4 .0 minus 1 .15 divided by 586 .1.
02:40
I might do this one in two steps.
02:43
So if i take 4 minus 1 .15, i get 2 .85, which is significant to right here divided by 586 .1 and i get 0 .00486265 whatever...