00:01
In this problem, we're being asked to subtract 43 ,650 minus 8 ,982.
00:07
So to do this, i'm going to set this problem up vertically.
00:09
So we're going to have 43 ,650 minus 8 ,982.
00:18
So we're going to start with the ones column.
00:20
Well, we're being asked to subtract two from zero, which we can't do.
00:24
We don't have enough.
00:25
So what we're going to need to do is borrow from the tens.
00:28
So i'm going to borrow one tens in exchange for 101.
00:31
So if i add 10 ones to the 0 i already have, i'm going to have 10 ones.
00:37
Now, if i borrow one of my tens, i'm now only going to be left with 4 tens.
00:42
But we can now subtract in the 1s column, and 10 minus 2 is 8.
00:47
Now, in the 10s column, we're being asked to subtract 8 from 4, which we can't do.
00:52
We don't have enough.
00:53
So we're going to have to borrow from the hundreds.
00:55
So i'm going to borrow 100 in exchange for 1010s.
00:58
So if i add 1010s to the 4 i already have, i will then have.
01:02
Have 14 tens.
01:04
Now, because i borrowed one of these hundreds, i'm now only left with five of them.
01:09
But now we can go ahead and subtract in the tens column.
01:12
So 14 minus 8 is 6.
01:14
Now we move on to the hundreds column.
01:16
We're being asked to subtract 9 from 5, which we can't do...