9.47-3.87-2013用简便运方法计算怎么算?

2025-03-22 18:21:31
推荐回答(2个)
回答(1):

9.47-3.87-2013
=9.47-3.47-0.4-2013
=6-0.4-2013
=6-2013-0.4
=-2007-0.4
=-(2007+0.4)
=-2007.4

回答(2):

9.47-3.87-2.13
=9.47-(3.87+2.13)
=9.47-6
=3.47