1. **State the problem:** Evaluate the expression $1+1\times1\div1-1$. 2. **Recall the order of operations (PEMDAS/BODMAS):** - Parentheses/Brackets - Exponents/Orders - Multiplication and Division (from left to right) - Addition and Subtraction (from left to right) 3. **Apply multiplication and division first:** - Calculate $1\times1=1$ - Then $1\div1=1$ 4. **Rewrite the expression with these results:** - $1 + 1 - 1$ 5. **Perform addition and subtraction from left to right:** - $1 + 1 = 2$ - $2 - 1 = 1$ 6. **Final answer:** - $1$