题目内容

【题目】直接写出计算结果.

7×0.5= 4÷0.8= 5.6﹣2.3= 0.125×4= 44÷1.2= 3.2÷1=

3.07×100= 1.8×5= 36÷3.6= 9.6÷1.2= 0÷0.9= 0.1×0.12=

5÷0.3×0.2= 12.5+12.5÷12.5= 0.6+0.6÷0.6﹣0.6= 2×0.7+4.2×0.3= (8.5﹣1.5)÷0.1= 20﹣3.7﹣6.3=

【答案】3.5,5,3.3,0.5,,3.2,307,9,10,8,0,0.012,,13.5,1,2.66,70,10

【解析】

试题分析:本题根据小数乘除法的计算法则求解;

5÷0.3×0.2按照从左到右的顺序求解;

12.5+12.5÷12.5先算乘法,再算加法;

0.6+0.6÷0.6﹣0.6先算除法,再算加法,最后算减法;

2×0.7+4.2×0.3同时运算两个乘法,再算加法;

(8.5﹣1.5)÷0.1先算小括号里面的减法,再算括号外的除法;

20﹣3.7﹣6.3根据减法的性质简算.

解:7×0.5=3.5, 4÷0.8=5, 5.6﹣2.3=3.3, 0.125×4=0.5, 44÷1.2=, 3.2÷1=3.2,

3.07×100=307, 1.8×5=9, 36÷3.6=10, 9.6÷1.2=8, 0÷0.9=0, 0.1×0.12=0.012,

5÷0.3×0.2=, 12.5+12.5÷12.5=13.5, 0.6+0.6÷0.6﹣0.6=1, 2×0.7+4.2×0.3=2.66, (8.5﹣1.5)÷0.1=70, 20﹣3.7﹣6.3=10.

故答案为:3.5,5,3.3,0.5,,3.2,307,9,10,8,0,0.012,,13.5,1,2.66,70,10.

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