计算下列各题能简算的要简算.
3.45×6.8+65.5×0.68 | [6+(-)×]÷95% | 99×2004-98×2005 |
1----…- | +++++. |
200-199+198-197+196-195+…+4-3+2-1= | ×+×+×+…+×= | 1.8+62= |
44÷= | 2.4×5= | 1÷+÷1= |
= | 3.4-1= | 2-1= |
+++…+= | 8.8×(++)= | 0.75×16+= |
98÷= | 30-(18.8+12×)= |
3.45×6.8+65.5×0.68 | [6+(-)×]÷95% | 99×2004-98×2005 |
1----…- | +++++. |
200-199+198-197+196-195+…+4-3+2-1= | ×+×+×+…+×= | 1.8+62= |
44÷= | 2.4×5= | 1÷+÷1= |
= | 3.4-1= | 2-1= |
+++…+= | 8.8×(++)= | 0.75×16+= |
98÷= | 30-(18.8+12×)= |