Let's solve both expressions step by step:

1. $1 + 4 = 5$

2. For $9 - 2 \times 3$, apply the order of operations (PEMDAS/BODMAS):

   • First, multiply $2 \times 3 = 6$
   • Then subtract: $9 - 6 = 3$

So, the solutions are:

1. $1 + 4 = 5$
2. $9 - 2 \times 3 = 3$

Would you like more details on how the order of operations works or have any questions?

Here are 5 related questions to expand on this:

1. What is the order of operations and why is it important?
2. Can you calculate $8 + 5 \times 2 - 3$?
3. How does the distributive property apply in solving expressions like $2 \times (3 + 4)$?
4. What happens if parentheses are added to the expression $9 - 2 \times 3$?
5. Can you solve $10 - 3 \times 2 + 4$?

Tip: Always remember to solve multiplication and division before addition and subtraction when no parentheses are present!