1. Open excel, enter "=SIGN" in the blank cell, and then double-click SIGN to call the function
2. Select the cell where the number symbol needs to be determined
3. Press the Enter key to get the result
4. Then place the mouse to the lower right corner of the cell, turn the mouse into a " " symbol, and drag downward
5. You can see that the same is true for other rows. The way to get the number symbols is
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