1. The problem is to evaluate the expression $1 + 0f$. 2. In mathematics, the symbol $f$ typically represents a variable or function, but here it appears immediately after a zero without an operator, which is not a standard mathematical expression. 3. If the user meant $1 + 0 \times f$, then by the multiplication property of zero, $0 \times f = 0$ for any $f$. 4. Therefore, $1 + 0 \times f = 1 + 0 = 1$. 5. If $0f$ was a typo or shorthand, the most reasonable interpretation is $0 \times f$. 6. Hence, the final answer is $1$.