Question

做一做： 7× 3 10 =	7 9 ×6=	24× 3 4 =	11 15 ×10=
21× 3 7 =	8 25 ×15=	12× 5 6 =	7 9 ×6=
15× 3 5 =	3 4 ×16=	3 11 ×3=	14× 5 21 =

Answer 1

考點(diǎn)：分?jǐn)?shù)乘法

專題：計算題

分析：根據(jù)分?jǐn)?shù)的乘法計算法則進(jìn)行計算，能約分的先約分．

解答： 解：

7× 3 10 =2 1 10	7 9 ×6=4 2 3	24× 3 4 =18	11 15 ×10=7 1 3
21× 3 7 =9	8 25 ×15=4 4 5	12× 5 6 =10	7 9 ×6=4 2 3
15× 3 5 =9	3 4 ×16=12	3 11 ×3= 9 11	14× 5 21 =3 1 3

點(diǎn)評：本題考查了分?jǐn)?shù)的乘法的計算法則