Need help with Silver Burdett Ginn Mathematics Exploring You

Hi,

I am trying to figure out what grade level Silver Burdett Ginn Mathematics: Exploring Your World books are. I have the 1992, 1994 version with the Louvre on the front, and I have no idea what grade level this is. I really like these books, and would like to use them, but I need to know the order of progression, and grade level of each book. I think the one with sailboat on the cover is grade 7, and the rocketship is grade 6 (please correct me if I am wrong), but what grade level is the Louvre? Also, if you have any additional information regarding these books, I would really appreciate
it.


Please help.

I didn't find the right solution from the Internet.

References:-
https://www.home-school.com/forums/viewtopic.php?t=45909
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Thanks!