Question

【题目】口算下面各题．

0.5×1.2= 1.25×0.8= 0.16×0.5=

0.25×4= 3.2×0.5= 0.2×50=

1.1×0.1= 1.7×0.03= 2.4×0.5=

0.12×7=

Answer 1

【答案】0.6,1,0.08,1,1.5,10,0.11,0.051,1.2,0.84

【解析】

试题分析：根据小数乘法的计算方法进行计算．

解：

0.5×1.2=0.6， 1.25×0.8=1， 0.16×0.5=0.08，

0.25×4=1， 3.2×0.5=1.5， 0.2×50=10，

1.1×0.1=0.11， 1.7×0.03=0.051， 2.4×0.5=1.2，

0.12×7=0.84．