1, divisor is integer fractional division calculation rule:

Divider is a fractional division of integers, and the division operation is carried out according to the law of integer division. The decimal point of quotient should be aligned with the decimal point of dividend. If there is a remainder at the end of the dividend, add 0 to the remainder and continue the division.

2. Divider is the calculation rule of fractional division:

Divider is the division of decimals. First, move the decimal point of the divisor to make it an integer. The decimal point of the divisor is shifted to the right by several digits, and the decimal point of the dividend is also shifted to the right by several digits (the digits are not enough, and 0 is added at the end of the dividend), and then the calculation is carried out according to the fractional division in which the divisor is an integer.

Decimal multiplication and division algorithm

1, decimal multiplication calculation rules:

First, calculate the product according to the calculation rules of integer multiplication, and then look at the factor * * *, how many decimal places there are, just count a few from the right side of the product and point to the decimal point; If the number of digits is not enough, use "0" to make it up.

2, decimal division calculation rules:

First, move the decimal point of the divisor to make it an integer, then move the decimal point of the divisor to the right by several digits (if there are not enough digits, add "0"), and then calculate according to the division rule that the divisor is an integer.

Divider and dividend are decimals, depending on how many decimals the divisor has and how many times the divisor and dividend are enlarged at the same time. Remove the decimal point of the divisor, and then remove it by integer division. Note that the decimal point of quotient is aligned with the decimal point of dividend.