一、双基训练

1.2017×

2.0.75÷

3.

4.（3-1.4 ）×

5.3-

6. ×39+ ×27

7. -0.25

8.5- ×21

9.

10. HWc8S2ozS/pZH12uSGMhGp24vi0Azei7uiZ2OFUMr+JItR4C0doyHx5o+Wgy2kHA

二、能力提升

11.

12.374÷

13.

14. ×39.75+ ×46.25+ ×37.2

15.

16.1× ×2× ×3× ×…×2016×

17.2016×2018×

18.

19.2016× × ×…×

20. HWc8S2ozS/pZH12uSGMhGp24vi0Azei7uiZ2OFUMr+JItR4C0doyHx5o+Wgy2kHA