1. First, 44 is 19 less than 25.
2. Secondly, that is to say, how much should be removed from the first 47 to get 19 plus 25 equals 44.
3. Then, through subtraction and comprehensive operation, only 47 minus 28 equals 19 plus 25 equals 44.
Finally, it is concluded that 47 minus 28 plus 25 equals 44.