The correct way to solve this expression is to follow the order of operations (PEMDAS/BODMAS):

1. **Multiplication** first:  
   \( 3 * 4 = 12 \)

2. **Addition** next:  
   \( 1 + 2 + 12 = 15 \)

So, the result of \( 1 + 2 + 3 * 4 \) is **15**.

Would you like more details or have any questions?

Here are 5 related questions to deepen your understanding:
1. What is the order of operations (PEMDAS/BODMAS)?
2. How would the result change if you added parentheses: \( (1 + 2 + 3) * 4 \)?
3. Can you explain how the distributive property works in a similar expression?
4. What happens if you reverse the order of operations?
5. How would this expression change with division instead of multiplication?

**Tip:** Always handle multiplication and division before addition and subtraction to avoid errors in solving expressions.

Learn how to solve the arithmetic expression 1 + 2 + 3 * 4 by applying the correct order of operations (PEMDAS/BODMAS). This problem explains the importance of multiplication before addition to achieve the correct result, suitable for students in Grades 5-6.

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