4.7*1.58+0.53*15.8
问题描述：
4.7*1.58+0.53*15.8
答
4.7*1.58+0.53*15.8
=4.7*1.58+0.53*1.58*10
=4.7*1.58+5.3*1.58
=（4.7+5.3）*1.58
=10*1.58
=15.8
学习愉快！
答
4.7x1.58+5.3x1.58
10x1.58
15.8