Question

11．直接寫得數(shù)．

$\frac{11}{14}$÷$\frac{23}{28}$=	0.375÷0.625=	$\frac{34}{39}$×$\frac{3}{17}$=	9-$\frac{4}{9}$=
100÷1%=	$\frac{1}{4}$×$\frac{1}{4}$÷$\frac{1}{4}$×$\frac{1}{4}$=	5÷$\frac{1}{5}$=	0.42=

Answer 1

分析 根據(jù)小數(shù)和分?jǐn)?shù)加減乘除法運(yùn)算的計(jì)算法則計(jì)算即可求解．注意$\frac{1}{4}$×$\frac{1}{4}$÷$\frac{1}{4}$×$\frac{1}{4}$變形為（$\frac{1}{4}$÷$\frac{1}{4}$）×（$\frac{1}{4}$×$\frac{1}{4}$）計(jì)算．

解答 解：

$\frac{11}{14}$÷$\frac{23}{28}$=$\frac{22}{23}$	0.375÷0.625=$\frac{7}{3}$	$\frac{34}{39}$×$\frac{3}{17}$=$\frac{2}{13}$	9-$\frac{4}{9}$=8$\frac{5}{9}$
100÷1%=10000	$\frac{1}{4}$×$\frac{1}{4}$÷$\frac{1}{4}$×$\frac{1}{4}$=$\frac{1}{16}$	5÷$\frac{1}{5}$=25	0.42=0.16

點(diǎn)評(píng) 考查了小數(shù)和分?jǐn)?shù)加減乘除法運(yùn)算，關(guān)鍵是熟練掌握計(jì)算法則正確進(jìn)行計(jì)算．