Test # 1

[Tue Sep 12 07:19:59 ~] $ python
Python 2.7.10 (default, Feb  7 2017, 00:08:15)
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 5.95 + 3 + 0.95 + 2.50/2
11.149999999999999
>>>
>>>
>>> 5.95 + 3 + 0.95 + 1.25
11.149999999999999
>>>
>>>
>>> 5.95 + 3
8.95
>>> 8.95 + 0.95
9.899999999999999
>>> 5.95 + 3.0 + 0.95 + 1.25
11.149999999999999
>>>
>>>
>>>
>>> 2.50/2
1.25
>>> 3 + 0.95
3.95
>>> 3.95 + 5.95
9.9
>>> 9.9 + 1.25
11.15

Test # 2
acollins@9BYD3G2:~$ python
Python 2.7.12 (default, Nov 19 2016, 06:48:10)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 5.95 + 3 + 0.95 + 2.50/2
11.149999999999999
>>> 3 + 0.95
3.95
>>> 3 + 0.95 + 2.50/2
5.2
>>> 5.95 + 0.95 + 2.50/2
8.15
>>> 5.95 + 3.0 + 0.95 + 2.50/2
11.149999999999999
>>> 5.95 + 3.0 + 0.95 + 2.50
12.399999999999999
>>> 5.95 + 3.0 + 0.95
9.899999999999999
>>> 5.95 + 3.0
8.95
>>> 5.95 + 0.95
6.9
>>> 5.95 + (3.0 + 0.95)
9.9
>>> 5.95 + (3.0 + 0.95) + 2.50
12.4
>>> 5.95 + (3.0 + 0.95) + 2.50/2
11.15
>>> (5.95 + 3.0) + 0.95 + 2.50/2
11.149999999999999
>>> 8.95 + 0.95 + 2.50/2
11.149999999999999
>>> 8.95 + 0.95
9.899999999999999
>>> 0.95 + 0.95
1.9
>>> 1.95 + 0.95
2.9
>>> 8.95 + 0.95
9.899999999999999
>>> 8.95 + 1.95
10.899999999999999
>>> 0.95 + 8.95
9.899999999999999
>>> 0.95 + 7.95
8.9
>>> 0.95 + 9.95
10.899999999999999
>>> 0.95 + 8.95
9.899999999999999
>>> 0.95 + 10.95
11.899999999999999
>>> 0.95 + 7.95
8.9

Test # 3
acollins@9BYD3G2:~$ python3
Python 3.5.2 (default, Nov 17 2016, 17:05:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 5.95 + 3 + 0.95 + 2.50/2
11.149999999999999