题目内容
【题目】口算题
0.27×5= 2.8÷0.7= 12.5×8= 0.25×4= 9.9÷99=
0.42×100= 6÷1000= 14.7÷7= 0.6×0.5= 2-0.23=
【答案】1.35,4,100,1,0.1,42,0.006,2.1,0.3,1.77
【解析】
解:0.27×5=1.35 2.8÷0.7=4
12.5×8=100 0.25×4=1
9.9÷99=0.1 0.42×100=42
6÷1000=0.006 14.7÷7=2.1
0.6×0.5=0.3 2-0.23=1.77
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