一、口算。
150 - 90 =
105 × 50 =
460 ÷ 20 =
52 × 50 =
460 - 200 =
370 × 30 =
130 × 3 =
864 ÷ 4 =
180 ÷ 9 =
37 + 44 =
603 ÷ 3 =
700 - 32 =
35 + 68 =
134 × 20 =
540 + 300 =
305 × 50 =
49 × 30 =
240 ÷ 3 =
600 ÷ 50 =
25 × 300 =
22 × 300 =
201 × 9 =
2000 ÷ 4 =
44 × 30 =

1. 150 - 90 = 60
2. 105 × 50 = 5250
3. 460 ÷ 20 = 23
4. 52 × 50 = 2600
5. 460 - 200 = 260
6. 370 × 30 = 11100
7. 130 × 3 = 390
8. 864 ÷ 4 = 216
9. 180 ÷ 9 = 20
10. 37 + 44 = 81
11. 603 ÷ 3 = 201
12. 700 - 32 = 668
13. 35 + 68 = 103
14. 134 × 20 = 2680
15. 540 + 300 = 840
16. 305 × 50 = 15250
17. 49 × 30 = 1470
18. 240 ÷ 3 = 80
19. 600 ÷ 50 = 12
20. 25 × 300 = 7500
21. 22 × 300 = 6600
22. 201 × 9 = 1809
23. 2000 ÷ 4 = 500
24. 44 × 30 = 1320

二、用竖式计算。
$63÷18=$
$910÷37=$
$403÷30=$
$208÷15=$
$135÷58=$
$207÷53=$

1. $63÷18=3······9$
2. $910÷37=24······22$
3. $403÷30=13······13$
4. $208÷15=13······13$
5. $135÷58=2······19$
6. $207÷53=3······48$