00:01
Numbers into the squares so it will add up to be 12 on each one of these.
00:04
I'm not to use 7 and 8, so i'm going to just go ahead and eliminate those.
00:08
So i'm going to look at this row right here and know it needs to add to be 12.
00:13
That tells me that we need to have a 0 and a 4 or 1 in a 3.
00:18
That's our only options.
00:20
Same thing here.
00:21
We're going to have a 0 and a 1, a 4, or a 1 in a 3.
00:26
Of course we could reverse those.
00:28
So we could have it at but those are going to have to be what needs to be in the column.
00:32
So let's go ahead and get the reversals as well.
00:34
4 .3, 1, 4, 3, and then 0 and 1.
00:41
So there's our choices.
00:42
So we've already taken care of all of these numbers here, which means we have 2, 5, and 6.
00:48
So now let's look at this.
00:50
Since we have a 7 here, we know that this cot row has to, this diagonal needs to become a 5.
00:58
So that means these two need to add, these two need to add to be five.
01:02
That means we have to choose four and one.
01:07
So we're going to eliminate the three and the zero here.
01:11
And tells us we can eliminate the four and the one and these two...