已知81.6×1.6=130.56,那么8.16×0.16= .已知18.24÷3.2=5.7,那么1.824÷0.32= .
69+18+23+31+82= .
1.25×98+×+= .
计算:8+98+998+9998= 9+99+102+103+101+98= .
计算:64×12.5×0.25×0.05= .
计算:1.25×31.3×24= .