Question

12．直接寫出得數(shù)．

451-198=	12.12÷12=	0.66+0.44=	5.125×8=
$\frac{1}{3}$-$\frac{1}{5}$=	$\frac{6}{7}$×$\frac{5}{9}$=	4÷18=	$\frac{1}{3}$×$\frac{1}{4}$÷$\frac{1}{3}$×$\frac{1}{4}$=

Answer 1

分析 根據(jù)整數(shù)小數(shù)分?jǐn)?shù)加減乘除的計(jì)算方法解答．

解答 解：

451-198=253	12.12÷12=1.01	0.66+0.44=1.1	5.125×8=41
$\frac{1}{3}$-$\frac{1}{5}$=$\frac{2}{15}$	$\frac{6}{7}$×$\frac{5}{9}$=$\frac{10}{21}$	4÷18=$\frac{2}{9}$	$\frac{1}{3}$×$\frac{1}{4}$÷$\frac{1}{3}$×$\frac{1}{4}$=$\frac{1}{16}$

點(diǎn)評(píng) 直接寫得數(shù)時(shí)，注意數(shù)據(jù)特點(diǎn)和運(yùn)算符號(hào)，細(xì)心解答即可．