15-109+24-126 +1000:2

To solve the given expression:

15 - 109 + 24 - 126 + 1000 ÷ 2

We need to follow the order of operations (PEMDAS/BODMAS):

1. First, we perform the division: 1000 ÷ 2 = 500

The expression becomes:

15 - 109 + 24 - 126 + 500

2. Next, we perform the addition and subtraction in order from left to right:

15 - 109 = -94 -94 + 24 = -70 -70 - 126 = -196 -196 + 500 = 304

So, the final answer is 304.