1、( 10+9+8+7+6)×5×(4+3+2+ 1)=2000

Concise: (40×5× 10)=2000.

2、 10×[9×8+7+(6+5-4)×3]×2× 1=2000

Simply put:10×100× 2×1= 2000.

3.1.02 ○ (3.04 ○ 5.06 ○) ○ (7.08) ○ 9 ○10 = 2000, and so on, soon.

4、( 1+2+3+4)×5×(6+7+8+9+ 10)=2000

Namely: 10×5×40=2000.