发布网友 发布时间:2022-05-18 20:18
共3个回答
热心网友 时间:2023-10-30 14:27
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热心网友 时间:2023-10-30 14:27
除以0.5一般理解为乘以2,除以0.9,我一般理解为乘以10再除以9热心网友 时间:2023-10-30 14:27
54.9*0.38 =20.862 4.05+37.85 =41.9 1.25*0.7*0.8 =1.25*0.8*0.7 =1*0.7 =0.7 9.8*25 =(10-0.2)*25 =10*25-0.2*25 =250-5 =245 6.1*3.6+3.6*3.9 =(6.1+3.9)*3.6 =10*3.6 =36 2.96*40 =(3-0.04)*40 =3*40-0.04*40 =120-1.6 =118.4