Operator substitution — If “+” means minus, “−” means multiply, “÷” means plus, and “×” means divide, evaluate: 10 × 5 ÷ 3 − 2 + 3

Introduction / Context:
This is a symbol-redefinition puzzle. Each symbol is reassigned to a different arithmetic operation. After replacing symbols, evaluate respecting normal precedence (× and ÷ before + and −) unless brackets dictate otherwise.

Given Data / Assumptions:

• “+” → minus (−)
• “−” → multiply (×)
• “÷” → plus (+)
• “×” → divide (÷)

Concept / Approach:
Rewrite the expression with the true operations, then compute with standard precedence.

Step-by-Step Solution:

Verification / Alternative check:
Evaluate left-to-right but still honoring precedence: same result 5.

Why Other Options Are Wrong:

• 53/3, 21, 36 arise from misapplying precedence or incorrect replacements.

Common Pitfalls:

• Treating the redefined symbols with altered precedence; precedence stays the same as the actual operation.

Final Answer:
5