Question

（2013?浠水縣）

直接寫得數(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)點對齊；②通分計算；③把分數(shù)化為小數(shù)計算；④先算除法，再算減法；⑤把除法改為乘法，再計算；⑥約分計算；⑦把百分數(shù)化為小數(shù)，再計算；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

點評：此題考查了小數(shù)點的數(shù)位對齊、約分、通分、數(shù)字轉(zhuǎn)化等知識，根據(jù)題目特點，靈活解答．