可以按照以下方式进行简便计算:0.25×5.3+25×0.13=0.25×5.3+0.25×13=0.25×(5.3+13)=0.25×18.3=4.575
4.575
0.25×5.3+25×0.13=0.25×5.3+2.5×1.3=2.5×0.53+2.5×1.3=2.5×1.83=4.575,谢谢采纳!
0.25×5.3+25×0.13=0.25×5.3+0.25×13=0.25×18.3=1/4×18.3=18.3÷4=4.575