Question

11．直接寫得數(shù)

2.5×0.4×0.8=	0.5×0.3=	0.8×6=	0.88+0.12=
0.5+5×0.2=	72.8÷0.8=	3.2×0.4=	1.8-0.18=
1.25×0.4×8=	2.5×0.8=	0.42÷0.1=	0.9÷0.01=

Answer 1

分析 根據(jù)小數(shù)加減乘除法的計(jì)算方法進(jìn)行計(jì)算即可．

解答 解：

2.5×0.4×0.8=0.8	0.5×0.3=0.15	0.8×6=4.8	0.88+0.12=1
0.5+5×0.2=1.5	72.8÷0.8=91	3.2×0.4=1.28	1.8-0.18=1.62
1.25×0.4×8=4	2.5×0.8=2	0.42÷0.1=4.2	0.9÷0.01=90

點(diǎn)評(píng) 考查了小數(shù)加減乘除法的口算能力，按照各自的計(jì)算方法進(jìn)行計(jì)算即可，注意運(yùn)算順序．