Question

13．直接寫出得數(shù)．

18×0.01=	0.32×5=	3.2÷0.1=	0.27÷0.03=
80×0.3=	2.3×20=	0.01÷0.1=	6.5×10=
0×0.995=	1.8÷0.3=	0÷4.61=	1.25×8=
10÷2.5=	2.4×5=	0.37×0.4=	2.34×0.2=

Answer 1

分析 根據(jù)小數(shù)的加減乘除法的計(jì)算方法計(jì)算．

解答 解：18×0.01=0.18    0.32×5=1.6     3.2÷0.1=32        0.27÷0.03=9
80×0.3=24           2.3×20=46      0.01÷0.1=0.1      6.5×10=65
0×0.995=0          1.8÷0.3=6       0÷4.61=0         1.25×8=10
10÷2.5=4            2.4×5=12       0.37×0.4=0.148    2.34×0.2=0.468

點(diǎn)評 口算題要看準(zhǔn)數(shù)和運(yùn)算符號，計(jì)算要認(rèn)真．