23 + 5 × 10 ÷ 2 – 33 + (11 – 8)
Use PEMDAS.
http://www.mathsisfun.com/operation-order-pemdas.html
23 + 5 × 10 ÷ 2 – 33 + (11 – 8)
23 + 5 × 10 ÷ 2 – 33 + 3
23 + 50 ÷ 2 - 33 + 3
23 + 25 - 33 + 3
48 - 33 + 3
15 + 3
18
To evaluate the expression, you need to follow the order of operations (also known as PEMDAS):
1. Start by multiplying 5 and 10: 5 × 10 = 50.
2. Divide the result by 2: 50 ÷ 2 = 25.
3. Add 23 and 25: 23 + 25 = 48.
4. Subtract 33 from the result: 48 - 33 = 15.
5. Evaluate the expression within the parentheses: 11 - 8 = 3.
6. Add the result from step 4 with the result from step 5: 15 + 3 = 18.
Therefore, the final answer is 18.