00:00 Solve
00:03 Each time we consider a deficit of 2 digits, and then we place
00:06 4 is less than 8
00:09 Therefore we subtract 1 from the tens and add this amount to the ones
00:14 So now instead of 4 we will have 14
00:19 We subtract the ones from the ones plus ten
00:22 We place in the ones
00:29 0 is less than 7
00:33 Therefore we subtract 1 from the hundreds and add this amount to the tens
00:38 So now instead of 0 we will have 10
00:42 We subtract the tens from the tens plus ten
00:46 We place in the tens
00:50 We subtract hundreds from hundreds, and place in hundreds
00:56 We subtract thousands from thousands, and place in thousands
00:59 And this is the solution to the question