Question

请问谁会下面的题？

Answer 1

1题 1.25×2.65+12.5×0.635+1.25
=1.25×2.65+1.25×6.35+1.25
=1.25×（2.65+6.35+1）
=1.25×10
=12.5
2题 =(1-1/2)+(1/2-1/3)+(1/3-1/4)+……+(1/2013-1/2014)
=1-1/2014
=2013/2014

Answer 2

1:=12.5乘（0.265+0.635+0.1）
=12.5乘1
=12.5

2.不知了！
我在想想！一定给你答复
望采纳1