Question

12．直接寫(xiě)得數(shù)．

7÷0.01=	$\frac{1}{3}$-$\frac{1}{3}$÷3=	1.3+27=	m-$\frac{1}{5}$m×$\frac{5}{4}$=	2.5×0.15×4=
10-0.33=	0.1÷25%=	$\frac{5}{6}$-$\frac{5}{6}$×0=	$\frac{1}{5}$÷$\frac{1}{5}$×$\frac{1}{5}$÷$\frac{1}{5}$=	1÷$\frac{1}{4}$-$\frac{1}{4}$÷1=

Answer 1

分析 根據(jù)小數(shù)、分?jǐn)?shù)和百分?jǐn)?shù)加減乘除法的計(jì)算方法進(jìn)行計(jì)算．
2.5×0.15×4根據(jù)乘法交換律進(jìn)行簡(jiǎn)算．

解答 解：

7÷0.01=700	$\frac{1}{3}$-$\frac{1}{3}$÷3=$\frac{2}{9}$	1.3+27=28.3	m-$\frac{1}{5}$m×$\frac{5}{4}$=$\frac{3}{4}$m	2.5×0.15×4=1.5
10-0.33=9.973	0.1÷25%=0.4	$\frac{5}{6}$-$\frac{5}{6}$×0=$\frac{5}{6}$	$\frac{1}{5}$÷$\frac{1}{5}$×$\frac{1}{5}$÷$\frac{1}{5}$=1	1÷$\frac{1}{4}$-$\frac{1}{4}$÷1=3$\frac{3}{4}$

點(diǎn)評(píng) 口算時(shí)，注意運(yùn)算符號(hào)和數(shù)據(jù)，然后再進(jìn)一步計(jì)算．