Question

口算下列各題． 4 11 ×22=	8.1÷3×2=	3.8+6.2=	368-178=	3 4 - 2 3 =
1÷ 5 8 =	1 5 +0.25=	3 5 ÷60%=	25%÷75%=	19.75×0=
0.73×100=	3.9+4.6=	4 5 - 4 5 ×0=	3 4 ÷ 3 4 ÷ 3 4 =	0.68+ 2 3 +0.32=
a- 1 3 a=	101×1.1=	0.875÷5=	0.46+0.54=	8×98×125=

Answer 1

考點(diǎn)：小數(shù)乘法,分?jǐn)?shù)除法

專題：運(yùn)算順序及法則

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

解答： 解：

4 11 ×22=8	8.1÷3×2=5.4	3.8+6.2=10	368-178=190	3 4 - 2 3 = 1 12
1÷ 5 8 = 8 5	1 5 +0.25=0.45	3 5 ÷60%=1	25%÷75%=1	19.75×0=0
0.73×100=73	3.9+4.6=8.5	4 5 - 4 5 ×0= 4 5	3 4 ÷ 3 4 ÷ 3 4 = 4 3	0.68+ 2 3 +0.32=1 2 3
a- 1 3 a= 2 3 a	101×1.1=111.1	0.875÷5=0.175	0.46+0.54=1	8×98×125=98000．

點(diǎn)評(píng)：此題考查的目的是理解掌握分?jǐn)?shù)、小數(shù)四則運(yùn)算的計(jì)算法則，并且能夠正確熟練地進(jìn)行計(jì)算．