Question

12．直接寫出各題的得數(shù)．

2.5×8=	0.12×3=	1÷0.125=	13÷4=
3.5+7.6=	2.4×0.01=	0.3×0.2×0.5=	98-89=

Answer 1

分析 根據(jù)整數(shù)和小數(shù)加減乘除法運(yùn)算的計(jì)算法則計(jì)算即可求解．注意0.3×0.2×0.5根據(jù)乘法結(jié)合律計(jì)算．

解答 解：

2.5×8=20	0.12×3=0.36	1÷0.125=8	13÷4=3.25
3.5+7.6=11.1	2.4×0.01=0.024	0.3×0.2×0.5=0.03	98-89=9

點(diǎn)評(píng) 考查了整數(shù)和小數(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．