Question

14．直接寫出得數(shù)．

29+38=	920-360=	1.9×30=	810÷30=
4÷100=	2.8+1.7=	1.02-0.38=	0.125×0.8=
4.2-1.8=	5÷15=	7.2÷0.1=	25×40%=
36×$\frac{3}{4}$=	$\frac{3}{4}$+$\frac{9}{4}$=	$\frac{5}{6}$×$\frac{4}{15}$=	2-$\frac{5}{8}$=

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．

解答 解：

29+38=67	920-360=560	1.9×30=57	810÷30=27
4÷100=0.04	2.8+1.7=4.5	1.02-0.38=0.64	0.125×0.8=0.1
4.2-1.8=2.4	5÷15=$\frac{1}{3}$	7.2÷0.1=72	25×40%=10
36×$\frac{3}{4}$=27	$\frac{3}{4}$+$\frac{9}{4}$=3	$\frac{5}{6}$×$\frac{4}{15}$=$\frac{2}{9}$	2-$\frac{5}{8}$=1$\frac{3}{8}$

點(diǎn)評(píng) 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．