题目内容

直接写出得数.
6.3+3.7=
9-1.8= 1.4×0.5= 0.49÷0.7=
1.53+0.8= 3.9-0.39= 0.25×1.2= 0.51÷0.3=
9.2×0.01= 70×0.5=
分析:根据小数加减乘除的计算方法进行计算,能简算的要简算.
解答:解:
6.3+3.7=10, 9-1.8=7.2, 1.4×0.5=0.7, 0.49÷0.7=0.7,
1.53+0.8=2.33 3.9-0.39=3.51, 0.25×1.2=0.3, 0.51÷0.3=1.7,
9.2×0.01=0.092, 70×0.5=35.
故答案为:10,7.2,0.7,0.7,2.33,3.51,0.3,1.7,0.092,35.
点评:小数的口算,要注意小数点的位置.
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