三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 8.4 + 0.4 = | 9.0 - 2.5 = | 2.9 + 1.7 = | 8.9 + 0.5 = |
| 5.4 - 2.9 = | 5.6 - 5.6 = | 3.9 + 2.9 = | 9.1 + 0.4 = |
| 3.0 - 2.2 = | 2.1 + 6.4 = | 9.9 + 0.1 = | 2.2 + 5.2 = |
| 3.6 + 0.8 = | 5.1 + 1.4 = | 5.8 - 0.6 = | 4.5 - 0.2 = |
| 4.5 + 1.7 = | 3.4 - 2.5 = | 1.4 + 5.6 = | 5.6 - 1.6 = |
| 0.5 - 0.2 = | 1.4 + 5.7 = | 5.5 - 4.5 = | 1.4 + 3.9 = |
| 8.3 + 0.9 = | 9.7 - 5.1 = | 9.4 + 0.5 = | 6.1 - 6.0 = |
| 9.3 - 2.3 = | 6.8 + 0.3 = | 1.2 - 1.0 = | 9.4 + 0.2 = |
| 6.7 - 5.2 = | 6.6 - 0.4 = | 2.6 + 6.9 = | 3.8 - 2.4 = |
| 4.3 - 2.8 = | 7.1 + 2.7 = | 0.8 + 8.4 = | 7.7 + 1.5 = |
| 6.5 + 2.4 = | 6.9 + 1.4 = | 5.5 + 3.7 = | 9.8 + 0.2 = |
| 9.6 + 0.4 = | 1.7 + 5.6 = | 8.8 - 5.1 = | 1.2 - 0.6 = |
| 0.5 - 0.1 = | 9.2 + 0.7 = | 7.7 - 6.4 = | 4.3 - 0.9 = |
| 3.9 + 5.4 = | 8.1 + 0.4 = | 1.4 - 0.4 = | 7.2 + 1.1 = |
| 0.9 + 4.7 = | 1.6 + 7.4 = | 6.5 + 1.5 = | 3.7 - 2.8 = |
| 1.3 + 7.4 = | 6.0 + 0.7 = | 0.3 - 0.2 = | 6.1 + 1.3 = |
| 2.1 - 1.5 = | 9.6 + 0.3 = | 1.0 - 0.5 = | 5.5 + 3.2 = |
| 4.3 - 0.3 = | 2.5 + 2.8 = | 9.3 - 8.0 = | 1.6 + 0.9 = |
| 2.1 - 1.7 = | 4.7 + 4.7 = | 6.2 - 4.9 = | 2.6 + 1.5 = |
| 8.7 + 1.3 = | 1.6 + 7.2 = | 2.9 + 4.4 = | 9.5 - 4.4 = |
| 4.4 - 3.7 = | 8.0 - 5.5 = | 0.5 + 2.0 = | 4.9 - 2.4 = |
| 1.0 - 0.3 = | 7.5 - 4.0 = | 0.8 - 0.6 = | 1.3 - 1.0 = |
| 9.6 + 0.3 = | 6.2 - 0.9 = | 8.2 - 5.4 = | 8.4 + 0.1 = |
| 6.2 + 2.4 = | 2.9 - 0.4 = | 8.1 - 7.2 = | 2.0 - 1.6 = |
| 4.5 + 5.5 = | 2.0 + 5.6 = | 5.5 - 0.1 = | 7.0 + 2.3 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 8.4 + 0.4 = 8.8 | 9.0 - 2.5 = 6.5 | 2.9 + 1.7 = 4.6 | 8.9 + 0.5 = 9.4 |
| 5.4 - 2.9 = 2.5 | 5.6 - 5.6 = 0 | 3.9 + 2.9 = 6.8 | 9.1 + 0.4 = 9.5 |
| 3.0 - 2.2 = 0.8 | 2.1 + 6.4 = 8.5 | 9.9 + 0.1 = 10 | 2.2 + 5.2 = 7.4 |
| 3.6 + 0.8 = 4.4 | 5.1 + 1.4 = 6.5 | 5.8 - 0.6 = 5.2 | 4.5 - 0.2 = 4.3 |
| 4.5 + 1.7 = 6.2 | 3.4 - 2.5 = 0.9 | 1.4 + 5.6 = 7 | 5.6 - 1.6 = 4 |
| 0.5 - 0.2 = 0.3 | 1.4 + 5.7 = 7.1 | 5.5 - 4.5 = 1 | 1.4 + 3.9 = 5.3 |
| 8.3 + 0.9 = 9.2 | 9.7 - 5.1 = 4.6 | 9.4 + 0.5 = 9.9 | 6.1 - 6.0 = 0.1 |
| 9.3 - 2.3 = 7 | 6.8 + 0.3 = 7.1 | 1.2 - 1.0 = 0.2 | 9.4 + 0.2 = 9.6 |
| 6.7 - 5.2 = 1.5 | 6.6 - 0.4 = 6.2 | 2.6 + 6.9 = 9.5 | 3.8 - 2.4 = 1.4 |
| 4.3 - 2.8 = 1.5 | 7.1 + 2.7 = 9.8 | 0.8 + 8.4 = 9.2 | 7.7 + 1.5 = 9.2 |
| 6.5 + 2.4 = 8.9 | 6.9 + 1.4 = 8.3 | 5.5 + 3.7 = 9.2 | 9.8 + 0.2 = 10 |
| 9.6 + 0.4 = 10 | 1.7 + 5.6 = 7.3 | 8.8 - 5.1 = 3.7 | 1.2 - 0.6 = 0.6 |
| 0.5 - 0.1 = 0.4 | 9.2 + 0.7 = 9.9 | 7.7 - 6.4 = 1.3 | 4.3 - 0.9 = 3.4 |
| 3.9 + 5.4 = 9.3 | 8.1 + 0.4 = 8.5 | 1.4 - 0.4 = 1 | 7.2 + 1.1 = 8.3 |
| 0.9 + 4.7 = 5.6 | 1.6 + 7.4 = 9 | 6.5 + 1.5 = 8 | 3.7 - 2.8 = 0.9 |
| 1.3 + 7.4 = 8.7 | 6.0 + 0.7 = 6.7 | 0.3 - 0.2 = 0.1 | 6.1 + 1.3 = 7.4 |
| 2.1 - 1.5 = 0.6 | 9.6 + 0.3 = 9.9 | 1.0 - 0.5 = 0.5 | 5.5 + 3.2 = 8.7 |
| 4.3 - 0.3 = 4 | 2.5 + 2.8 = 5.3 | 9.3 - 8.0 = 1.3 | 1.6 + 0.9 = 2.5 |
| 2.1 - 1.7 = 0.4 | 4.7 + 4.7 = 9.4 | 6.2 - 4.9 = 1.3 | 2.6 + 1.5 = 4.1 |
| 8.7 + 1.3 = 10 | 1.6 + 7.2 = 8.8 | 2.9 + 4.4 = 7.3 | 9.5 - 4.4 = 5.1 |
| 4.4 - 3.7 = 0.7 | 8.0 - 5.5 = 2.5 | 0.5 + 2.0 = 2.5 | 4.9 - 2.4 = 2.5 |
| 1.0 - 0.3 = 0.7 | 7.5 - 4.0 = 3.5 | 0.8 - 0.6 = 0.2 | 1.3 - 1.0 = 0.3 |
| 9.6 + 0.3 = 9.9 | 6.2 - 0.9 = 5.3 | 8.2 - 5.4 = 2.8 | 8.4 + 0.1 = 8.5 |
| 6.2 + 2.4 = 8.6 | 2.9 - 0.4 = 2.5 | 8.1 - 7.2 = 0.9 | 2.0 - 1.6 = 0.4 |
| 4.5 + 5.5 = 10 | 2.0 + 5.6 = 7.6 | 5.5 - 0.1 = 5.4 | 7.0 + 2.3 = 9.3 |