Similarities between integer and decimal multiplication and division

Similarities between integer and decimal multiplication and division

The common point of integer, decimal addition and subtraction is to add or subtract the numbers in the same unit. Specifically reflected in the integer addition and subtraction method, it is to align the digits of the numbers participating in the operation; in the decimal addition and subtraction method, it is to align the decimal point. In the integer and decimal multiplication and division method and calculation method, the decimal multiplication and division method is based on the integer multiplication and division method