Question

直接寫得數(shù) 3 8 ×6=	3 4 ×2=	3 10 × 5 12 =	1 3 ×6=
0.75× 2 15 =	5 6 ×3=	2 7 ÷ 8 21 =	7 9 × 9 7 =

Answer 1

考點(diǎn)：分?jǐn)?shù)乘法,分?jǐn)?shù)除法

專題：計(jì)算題

分析：根據(jù)分?jǐn)?shù)乘法、除法的計(jì)算法則，直接進(jìn)行口算即可．

解答： 解：

3 8 ×6= 9 4	3 4 ×2= 3 2	3 10 × 5 12 = 1 8	1 3 ×6=2
0.75× 2 15 =0.1	5 6 ×3= 5 2	2 7 ÷ 8 21 = 3 4	7 9 × 9 7 =1．

點(diǎn)評(píng)：此題考查的目的是理解掌握分?jǐn)?shù)乘法、除法的計(jì)算法則，并且能夠正確熟練地進(jìn)行口算，提高口算能力．