Question

15．直接寫得數(shù)．

3.5×0.2=	0.72÷0.9=	1-0.01=	0.2÷0.01=
4.8+2=	0.25×40=	6.5-5.6=	1.25×0.8=
5.3×0.01=	3.12+8.8=	2.5×0.04=	0.6÷0.001=

Answer 1

分析 根據(jù)小數(shù)加減乘除法運算的計算法則計算即可求解．

解答 解：

3.5×0.2=0.7	0.72÷0.9=0.8	1-0.01=0.99	0.2÷0.01=20
4.8+2=6.8	0.25×40=10	6.5-5.6=0.9	1.25×0.8=1
5.3×0.01=0.053	3.12+8.8=11.92	2.5×0.04=0.1	0.6÷0.001=600

點評 考查了小數(shù)加減乘除法運算，關(guān)鍵是熟練掌握計算法則正確進(jìn)行計算．