I think the Muslims gave us the number “Zero”.
Other than that, they’ve contributed nothing but an awful lot of misery, mayhem, and mass murder.
Nope they stole it from the ancient Greeks and Hindus. Throughout history Islam has been a retrograde force, it merely loots the corpses of civilizations it destroys.
Second, I refuse to believe that, just because they didn't have a separate symbol for it, that Greeks and Romans never got around to asking, "If I have 5 olives and give Alexander 3, and give Titus two, how many do I have left?"
What is significant is decimal notation, and different fish entirely.
Zero came before Arabs fell under the Mohammedan spell. Since the 7th Century, Muslims haven’t progressed beyond the 7th Century.