Question

直接寫得數(shù) 127+28=	7.5-5=	8.4÷7=	0.36÷0.4=	1.5×0.1=
1-0.25=	3.4+1.6=	4.3-0.8=	2.7+8.4=	14×0.2=
0.5×0.3=	3.26÷100=	0.25×4=	1.5×4=	3.06÷1000=
4.9×1000=	5×0.08=	0.4×0.4=	0.8×100=	2.5×4×0=
2.15+1.85=	0÷0.25=	9÷10=	2.6+0.4=	21.2-21=

Answer 1

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

專題：計算題

分析：根據(jù)四則運算的計算法則進行計算即可求解．

解答： 解：

127+28=155	7.5-5=2.5	8.4÷7=1.2	0.36÷0.4=0.9	1.5×0.1=0.15
1-0.25=0.75	3.4+1.6=5	4.3-0.8=3.5	2.7+8.4=11.1	14×0.2=2.8
0.5×0.3=0.15	3.26÷100=0.0326	0.25×4=1	1.5×4=6	3.06÷1000=0.00306
4.9×1000=4900	5×0.08=0.4	0.4×0.4=0.16	0.8×100=80	2.5×4×0=0
2.15+1.85=4	0÷0.25=0	9÷10=0.9	2.6+0.4=3	21.2-21=0.2

點評：考查了四則運算，關鍵是熟練掌握計算法則正確進行計算．