解方程
| 2(x-2.6)=8 | (x-3)÷2=7.5 | 13.2x+9=33.3 |
| x-0.36x=16 | 3.8+x=6.3 | x÷8≒0.4. |
能简算的要简算:
| ①9.1-1.2÷6-6.24 | ②4.7×10.2 | ③0.88×4.9+0.88×5.1 |
| ④2.5×8×0.4×0.125 | ⑤(5.63-1.88)×0.2 | ⑥0.25×43.7×4. |
| 2(x-2.6)=8 | (x-3)÷2=7.5 | 13.2x+9=33.3 |
| x-0.36x=16 | 3.8+x=6.3 | x÷8≒0.4. |
| ①9.1-1.2÷6-6.24 | ②4.7×10.2 | ③0.88×4.9+0.88×5.1 |
| ④2.5×8×0.4×0.125 | ⑤(5.63-1.88)×0.2 | ⑥0.25×43.7×4. |