Look at each expression. Decide what operation should be done first, then solve
for the answer

1. (9+4)×(2³-3)
2. (27+3)×5²+12
3. 10²-(3²+4²)×2²
4. 6×(2×7+5²)
5. (15-15)³+(8+2)²

thanks so much.​