00:01
Okay, so we'll be adding decimals.
00:02
So you set it up like you would set up normal addition.
00:05
Let's start with the first one.
00:07
Number one is we're adding 0 .48, 0 .009, and 0 .23.
00:16
So the first one was 0 .48.
00:20
Then we do 0 .009, and then 0 .23.
00:31
What i usually do not to get mixed up, i just put a placeholder 0.
00:38
Because whether it's 0 .5 for example, or 0 .50, it's just still 0 .5.
00:44
The 0 after that is not a significant digit, so it doesn't really matter.
00:48
But it's just there as a placeholder.
00:50
So, we're adding 9, 0, and 0, and that will give us 9.
00:56
8 and 3 gives us 11.
00:59
So we bring the 1, carry the 1.
01:02
4 plus 2 is 6, plus 1, 7.
01:06
So for number one, the answer is 0 .719.
01:10
Number two, we're adding 0 .01, 0 .947, and 0 .022.
01:37
Similarly, i'm going to add a placeholder 0.
01:40
So we add 7 and 2, which is 9.
01:43
We keep the decimal point in the same spot.
01:47
4 plus 2 is 6, plus 1, 7.
01:50
0 plus 9 plus 0 is 9.
01:53
So the second one is 0 .979.
01:59
The third, and we're going to do the same for all of them.
02:01
The third is 0 .008, 0 .62, and 0 .3.
02:18
So we put the decimal point back in the same spot.
02:21
I'm going to add my placeholder 0's.
02:25
8 plus 0 plus 0 is 8.
02:28
0 plus 2 plus 0 is 2.
02:30
6 plus 3 plus 0 is 9.
02:33
And 0 plus 0 plus 0 is 0.
02:36
So we get 0 .928 for number three.
02:41
Moving on to number four.
02:46
0 .09, 0 .87, 0 .006.
02:58
And i'm going to put placeholder 0's again.
03:00
You don't have to do that, but it's just easier to see it.
03:07
Now you're not adding any number there to 6.
03:11
The only number that's in that place is 6.
03:15
So 6 plus 0 plus 0 is 6.
03:18
9 plus 7 is 16.
03:22
So that's why i say it's like regular addition of numbers.
03:26
Except we're going to put the decimal in the same spot that it is.
03:30
Right there.
03:31
8 plus 1 is 9.
03:34
So our answer is 0 .966.
03:39
And for number five, 0 .756, 0 .843, 0 .95.
04:06
I'm going to put my placeholder 0.
04:07
6 plus 3 is 9.
04:09
5 plus 5 is 10 plus 4 is 14.
04:14
9 plus 1 is 10 plus 7 is 17.
04:18
Plus 8 is 25...