Question

16．直接寫得數(shù)．

476-199=	$\frac{4}{9}$×4=	10÷0.01=	$\frac{5}{7}+\frac{9}{8}×\frac{7}{9}+\frac{1}{8}$=
$\frac{2}{3}+\frac{2}{3}$=	0÷$\frac{1}{4}$=	3÷$\frac{3}{25}$=25	65.47-（5.47+1.3）=

Answer 1

分析 根據(jù)整數(shù)、小數(shù)和分?jǐn)?shù)加減乘除法運(yùn)算的計(jì)算法則計(jì)算即可求解．注意$\frac{5}{7}+\frac{9}{8}×\frac{7}{9}+\frac{1}{8}$先算乘法再根據(jù)加法結(jié)合律計(jì)算，被除數(shù)=除數(shù)×商，65.47-（5.47+1.3）變形為65.47-5.47-1.3計(jì)算．

解答 解：

476-199=277	$\frac{4}{9}$×4=$\frac{16}{9}$	10÷0.01=1000	$\frac{5}{7}+\frac{9}{8}×\frac{7}{9}+\frac{1}{8}$=1$\frac{5}{7}$
$\frac{2}{3}+\frac{2}{3}$=1$\frac{1}{3}$	0÷$\frac{1}{4}$=0	3÷$\frac{3}{25}$=25	65.47-（5.47+1.3）=58.7

故答案為：3．

點(diǎn)評 考查了整數(shù)、小數(shù)和分?jǐn)?shù)加減乘除法運(yùn)算，關(guān)鍵是熟練掌握計(jì)算法則正確進(jìn)行計(jì)算．