[ Rebus  [ Arithmetic operations. Numerical identities ]

In the equality $101-102$ = 1, move one digit so that it becomes correct.

#
If the digit 2 in the number 102 is moved up to the position of the exponent, the original equality will take the form $101-10^{2}=1$ and will be correct.

## Answer

The digit 2 in the number 102 should be placed in the position of the exponent.