Question

【题目】口算

0.5×5= 0.2﹣0.2= 6.5÷100= 0.61÷10=

1.25×8= 4.85×0= 0.08×0.9= 1000×3.08=

9.5+0.52= 4.8﹣2.5= 7.3×100= 6.7﹣4.5=

0.24÷4= 5.2÷4= 1.5×0.04= 0.45÷9=

Answer 1

【答案】2.5,0,0.065,0.061,10,0,0.072,3080,10.02,2.3,730,2.2,0.06,1.3,0.06,0.05

【解析】

试题分析：依据小数乘法、除法、加法、减法的计算方法直接计算即可．

解：0.5×5=2.5 0.2﹣0.2=0 6.5÷100=0.065 0.61÷10=0.061

1.25×8=10 4.85×0=0 0.08×0.9=0.072 1000×3.08=3080

9.5+0.52=10.02 4.8﹣2.5=2.3 7.3×100=730 6.7﹣4.5=2.2

0.24÷4=0.06 5.2÷4=1.3 1.5×0.04=0.06 0.45÷9=0.05