Object collection order
In the computer game, you need to collect 5 objects in the room: a sword, a ring, a picture, a key, and a coin. It depends on the order in which we collect the individual objects. If the order is wrong, we will lose a life. How many are all in order?
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You need to know the following knowledge to solve this word math problem:
combinatoricsbasic operations and conceptsGrade of the word problem
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