Question

18．直接寫出得數(shù)

$\frac{5}{9}$×$\frac{3}{5}$=	0.6÷$\frac{2}{3}$﹦	$\frac{2}{5}×\frac{2}{3}$=	$\frac{7}{8}÷\frac{7}{5}$=
$\frac{5}{8}÷\frac{1}{10}$=	$\frac{9}{5}×5$=	$\frac{2}{9}×\frac{4}{9}$=	$\frac{3}{5}×\frac{5}{6}$=
0.2÷$\frac{2}{5}$=	12×0.25=

Answer 1

分析 根據(jù)分?jǐn)?shù)的乘除法和小數(shù)乘法的計算法則計算即可求解．

解答 解：

$\frac{5}{9}$×$\frac{3}{5}$=$\frac{1}{3}$	0.6÷$\frac{2}{3}$﹦0.9	$\frac{2}{5}×\frac{2}{3}$=$\frac{4}{15}$	$\frac{7}{8}÷\frac{7}{5}$=$\frac{5}{8}$
$\frac{5}{8}÷\frac{1}{10}$=$\frac{25}{4}$	$\frac{9}{5}×5$=9	$\frac{2}{9}×\frac{4}{9}$=$\frac{8}{81}$	$\frac{3}{5}×\frac{5}{6}$=$\frac{1}{2}$
0.2÷$\frac{2}{5}$=0.5	12×0.25=3

點評 考查了分?jǐn)?shù)的乘除法和小數(shù)乘法的計算，關(guān)鍵是熟練掌握計算法則正確進(jìn)行計算．