题目内容

直接写得数.
5.1-2=
7.2÷1.2= 3.86×10= 3.9×0.01=
9.1÷0.13= 9.73÷10 2.5×4= 0.5+0.43=
1-0.55= 0.4×0.3= 98.4÷100=
分析:依据小数四则运算方法解答.
解答:
解:5.1-2=3.1; 7.2÷1.2=6; 3.86×10=38.6; 3.9×0.01=0.039;
9.1÷0.13=70; 9.73÷10=0.973; 2.5×4=10; 0.5+0.43=0.93;
1-0.55=0.45; 0.4×0.3=0.12; 98.4÷100=0.984.
故答案为:3.1,6,38.6,0.039,70,0.973,10,0.93,0.45,0.12,0.984.
点评:本题主要考查了学生对于小数四则运算计算方法的灵活应用.
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