1, unit: 100 is less than 24 units, so you need to lend 1 00 units, and the unit of 100 is 10, minus 4 equals 6.

Decimal digit: One of the decimal digits of 100 is-1, which is smaller than the decimal digit of 24, so 100 is needed to borrow 1, so the decimal digit of 100 is 9, and minus 2 equals 7.

3. The hundredth of 1 00 is 0 after borrowing1,and MINUS 0 equals 0.

So, the result is 76.

Extended data:

Subtraction is one of the four operations, and the operation of subtracting one number from another is called subtraction; Given the sum of two addends and one of them, the operation of finding the other addend is called subtraction. The symbol of subtraction is "-",which is pronounced as negative sign.

Subtraction by abdication, a special mathematical term, can also be called subtraction by borrowing. That is, when two numbers are subtracted and the number of digits to be subtracted is not enough, borrowing the previous digit is equivalent to adding 10 to this digit, and then calculating.