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How to write the relay race on page 75 of the first grade math summer homework?
The solution of the relay race on page 75 of the first-year math summer homework is as follows:

1, the first number is calculated by the number on the arrow, and the result is written after the arrow, which is called the second number.

2. Use the arrow after the second number to perform the operation, and the result is written after the second arrow.

3. Follow the first two steps.