Question

（2013?浠水縣）

直接寫(xiě)得數(shù) 1-0.27=	1 5 - 1 8 =	0.375+ 4 5 =
1÷ 1 3 - 1 3 ÷1=	2÷ 2 5 =	5 9 ×2.7=
3.02÷30.2%=	1 2 + 1 2 ×3=

Answer 1

分析：①注意小數(shù)點(diǎn)對(duì)齊；②通分計(jì)算；③把分?jǐn)?shù)化為小數(shù)計(jì)算；④先算除法，再算減法；⑤把除法改為乘法，再計(jì)算；⑥約分計(jì)算；⑦把百分?jǐn)?shù)化為小數(shù)，再計(jì)算；⑧先算乘法，再算加法．

解答：解：

1-0.27=0.73	1 5 - 1 8 = 3 40	0.375+ 4 5 =1.175
1÷ 1 3 - 1 3 ÷1=2 2 3	2÷ 2 5 =5	5 9 ×2.7=1.5
3.02÷30.2%=10	1 2 + 1 2 ×3=2

點(diǎn)評(píng)：此題考查了小數(shù)點(diǎn)的數(shù)位對(duì)齊、約分、通分、數(shù)字轉(zhuǎn)化等知識(shí)，根據(jù)題目特點(diǎn)，靈活解答．