The reversal of minuend and subtrahend eases implementation in hardware. One adds the amount needed to get zeros in the subtrahend. Subtraction is done by adding the ten's complement of the subtrahend to the minuend. A visualization of the subtraction can be achieved by considering addition of the negative subtrahend. Repeat until all the digit of the subtrahend have been removed. Rather it increases the subtrahend hundred's digit by one. The European method corrects by increasing the subtrahend digit "s" by one. The minuend is 704, the subtrahend is 512. Add that to the subtrahend 218, then calculate the nines' complement of the result. However, the 10 is not taken by reducing the minuend, rather one augments the subtrahend. Using the gerundive suffix "-nd" results in "subtrahend", "thing to be subtracted".