I want to ask Euler how to get the math interchange code 2022 in junior high school. Complete the activity task in Euler's junior high school mathematics, get the ranking and get the 2022 exchange code, which is the official activity. According to the official announcement of Euler Junior High School Mathematics, you can get the redemption code by completing the activities and tasks in Euler Junior High School Mathematics and ranking. By August 2022 12, you can also get the redemption code in official activities.