Question

1．直接寫出得數(shù)．

4-1.08=	0.4÷4=	12-$\frac{2}{3}$=	$\frac{3}{16}$×$\frac{2}{9}$=
24×0.125=	$\frac{3}{4}$+20%=	$\frac{1}{7}$÷$\frac{10}{21}$=	$\frac{1}{4}$×$\frac{1}{5}$÷$\frac{1}{4}$×$\frac{1}{5}$=

Answer 1

分析 根據(jù)四則運(yùn)算的計(jì)算法則計(jì)算即可求解．注意$\frac{1}{4}$×$\frac{1}{5}$÷$\frac{1}{4}$×$\frac{1}{5}$變形為（$\frac{1}{4}$÷$\frac{1}{4}$）×（$\frac{1}{5}$×$\frac{1}{5}$）計(jì)算．

解答 解：

4-1.08=2.92	0.4÷4=0.1	12-$\frac{2}{3}$=11$\frac{1}{3}$	$\frac{3}{16}$×$\frac{2}{9}$=$\frac{1}{24}$
24×0.125=3	$\frac{3}{4}$+20%=0.95	$\frac{1}{7}$÷$\frac{10}{21}$=$\frac{3}{10}$	$\frac{1}{4}$×$\frac{1}{5}$÷$\frac{1}{4}$×$\frac{1}{5}$=$\frac{1}{25}$

點(diǎn)評(píng) 考查了四則運(yùn)算，關(guān)鍵是熟練掌握計(jì)算法則正確進(jìn)行計(jì)算．