Question

2．

直接寫出結(jié)果 132+64=	0.64+1.5=	3-1$\frac{5}{7}$=	0.125×16=	2.58+7.42=
$\frac{5}{8}$×$\frac{4}{15}$=	$\frac{1}{3}$×$\frac{3}{4}$=	4$\frac{3}{5}$+4$\frac{2}{5}$=	6$\frac{5}{6}$+3.8+3$\frac{1}{6}$+6.2=	（$\frac{1}{4}+\frac{1}{6}$）×12=

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0.125×16變形為0.125×8×2計(jì)算，6$\frac{5}{6}$+3.8+3$\frac{1}{6}$+6.2根據(jù)加法交換律和結(jié)合律計(jì)算，（$\frac{1}{4}+\frac{1}{6}$）×12根據(jù)乘法分配律計(jì)算．

解答 解：

132+64=196	0.64+1.5=2.14	3-1$\frac{5}{7}$=1$\frac{2}{7}$	0.125×16=2	2.58+7.42=10
$\frac{5}{8}$×$\frac{4}{15}$=$\frac{1}{6}$	$\frac{1}{3}$×$\frac{3}{4}$=$\frac{1}{4}$	4$\frac{3}{5}$+4$\frac{2}{5}$=9	6$\frac{5}{6}$+3.8+3$\frac{1}{6}$+6.2=20	（$\frac{1}{4}+\frac{1}{6}$）×12=5

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．