Question

直接寫得數(shù)： 8.2-1.98=	3.7÷0.25=	3.5+2.7+16.5=	5.4-0.5-1.4=
9.6×0.5=	3.74÷0.2÷0.5=	1.25×1.3×8=	10-1.1+0.9=
0.1×0.01=	0.1+0.2+…+0.8+0.9=

Answer 1

考點(diǎn)：小數(shù)的加法和減法,小數(shù)乘法,小數(shù)除法

專題：計(jì)算題

分析：根據(jù)四則運(yùn)算的計(jì)算法則計(jì)算即可求解．注意3.5+2.7+16.5根據(jù)加法交換律和結(jié)合律計(jì)算，5.4-0.5-1.4變形為5.4-1.4-0.5計(jì)算，3.74÷0.2÷0.5根據(jù)除法的性質(zhì)計(jì)算，1.25×1.3×8根據(jù)乘法交換律和結(jié)合律計(jì)算．

解答： 解：

8.2-1.98=6.22	3.7÷0.25=14.8	3.5+2.7+16.5=22.7	5.4-0.5-1.4=3.5
9.6×0.5=4.8	3.74÷0.2÷0.5=37.4	1.25×1.3×8=13	10-1.1+0.9=9.8
0.1×0.01=0.001	0.1+0.2+…+0.8+0.9=4.5

點(diǎn)評：考查了四則運(yùn)算，關(guān)鍵是熟練掌握計(jì)算法則正確進(jìn)行計(jì)算．