Let's go through each problem step-by-step and find the solutions.

1. $12 - 3$ $12 - 3 = 9$

2. $121 \div 11$ $121 \div 11 = 11$

3. $(4 \times 13) \div 2$

   • First, calculate $4 \times 13$: $4 \times 13 = 52$
   • Then divide by 2: $52 \div 2 = 26$

4. $4(0.5 \times 0.5)$

   • First, calculate $0.5 \times 0.5$: $0.5 \times 0.5 = 0.25$
   • Then multiply by 4: $4 \times 0.25 = 1$

5. $1 \times 32$ $1 \times 32 = 32$

Summary of Answers:

1. $12 - 3 = 9$
2. $121 \div 11 = 11$
3. $(4 \times 13) \div 2 = 26$
4. $4(0.5 \times 0.5) = 1$
5. $1 \times 32 = 32$

Would you like further explanations on any of these steps?

Here are five related questions to deepen your understanding:

1. What is the result of $15 - 7 + 3$?
2. How would you solve $(3 \times 14) \div 7$?
3. What is $6 \div 0.5$ and why?
4. How do you approach solving expressions with parentheses first?
5. What is the value of $2^3 \times 4$?

Tip: Always perform calculations inside parentheses first, following the order of operations (PEMDAS/BODMAS).