I prepared these exercises and their solutions with Samuel Baumard, and with Robin Stephenson for the last ones.
You may find this useful : pense-bête Maple (french).
If you have trouble opening a Maple file, do not hesitate to contact me ! If you click on a Maple file and you get a page of xml code, try to right click and "save the link as", then save the file and open it with Maple.