1、205×0. 18; 305×0. 14; 2.03×0. 13; 10.2×2.3; 103×0.23。

2、5 18×3.07; 0. 13 1×202; 4. 15× 1.03; 2.42× 1.05; 1.25×8.08。

3、 18.6× 1.5; 2.06×0.25; 2.8×0. 165; 2.36×0.35; 1.25×8.8。

4、 1.35÷27; 0.4 16÷32; 3.64÷52; 16.8÷28; 15.6÷24。

5、62.4÷2.6; 2.38÷0.34; 0.544÷0. 16; 6.2 1÷0.3; 5.98÷2.3。

6、3.8 1÷7; 8.33÷3. 1; 5.63÷6. 1; 48÷2.3; 2.04÷2.4。

7、 15.8÷0.9 1; 32.27÷2.7; 5.7 13÷3; 86÷ 16; 1.26÷28。

8、3.8÷0.9; 1.5÷2.5; 34.5÷ 1 1; 1.24÷3.6; 78.6÷ 1 1。

9、25.2÷6; 34.5÷ 15; 5.6÷4; 1.8÷ 12; 18÷ 1.2。

10、7.83÷9; 4.08÷8; 0.54÷6; 6.3÷ 14; 72÷ 1.5。

Calculation rules of fractional division:

First, move the decimal point of the divisor to make it an integer, move the decimal point of the divisor to the right by several digits, and move the decimal point of the dividend to the right by the same number of digits. Calculation rules of decimal multiplication: first calculate the product according to the rules of integer multiplication, and then look at a factor * * * and how many decimal places there are. Count a few points from the right side of the product to the decimal point. If the number of digits is not enough, use 0 to make up.