Question

6．直接寫得數(shù)．

0.35+1.5=	1-$\frac{1}{5}$+$\frac{4}{5}$=	$\frac{1}{11}$×12.1-1=	1.01-0.91=
1-0.99=	$\frac{13}{27}$×8+$\frac{13}{27}$=	1÷0.1-1×0.1=	1-0.25×0.4=
$\frac{1}{6}$+$\frac{1}{6}$÷$\frac{1}{6}$+$\frac{1}{6}$=	$\frac{5}{9}$×$\frac{1}{5}$÷$\frac{5}{9}$×$\frac{1}{5}$=	a-$\frac{1}{3}$a×$\frac{3}{4}$=	$\frac{1}{8}$÷$\frac{1}{8}$÷$\frac{1}{8}$=

Answer 1

分析 根據(jù)小數(shù)分?jǐn)?shù)加減乘除法的計(jì)算方法解答，多步計(jì)算的注意運(yùn)算順序，$\frac{13}{27}$×8+$\frac{13}{27}$運(yùn)用乘法分配律進(jìn)行簡(jiǎn)算．

解答 解：

0.35+1.5=1.85	1-$\frac{1}{5}$+$\frac{4}{5}$=$\frac{8}{5}$	$\frac{1}{11}$×12.1-1=0.1	1.01-0.91=0.1
1-0.99=0.01	$\frac{13}{27}$×8+$\frac{13}{27}$=$\frac{13}{3}$	1÷0.1-1×0.1=9.9	1-0.25×0.4=0.9
$\frac{1}{6}$+$\frac{1}{6}$÷$\frac{1}{6}$+$\frac{1}{6}$=1$\frac{1}{3}$	$\frac{5}{9}$×$\frac{1}{5}$÷$\frac{5}{9}$×$\frac{1}{5}$=$\frac{1}{25}$	a-$\frac{1}{3}$a×$\frac{3}{4}$=$\frac{3}{4}$a	$\frac{1}{8}$÷$\frac{1}{8}$÷$\frac{1}{8}$=8

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)，多步計(jì)算的注意運(yùn)算順序，能用運(yùn)算定律進(jìn)行簡(jiǎn)算的要簡(jiǎn)算．