直接写得数: 0.04×0.5= 0.81×0.1= 25×0.04= 2.5×0.4= 4.4-0.44= 0.3÷0.01= 7÷0.5=
直接写得数:0.04×0.5=0.81×0.1=25×0.04=2.5×0.4=4.4-0.44=0.3÷0.01=7÷0.5=0.66÷0.6=2.01+2.001=(...
直接写得数: 0.04×0.5= 0.81×0.1= 25×0.04= 2.5×0.4= 4.4-0.44= 0.3÷0.01= 7÷0.5= 0.66÷0.6= 2.01+2.001= (3.254-1.769)×(2.9-2.9)=
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