15.7-4.83+4.3-5.17用简便方法计算怎么算
问题描述:
15.7-4.83+4.3-5.17用简便方法计算怎么算
答
15.7-4.83+4.3-5.17
=(15.7+4.3)-(4.83+5.17)
=20-10
=10