三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 7.1 + 2.1 = | 9.2 + 0.4 = | 3.9 - 3.4 = | 9.1 - 4.8 = |
| 1.2 + 1.9 = | 3.3 - 2.4 = | 2.7 - 0.9 = | 6.4 + 2.0 = |
| 9.3 + 0.3 = | 2.0 - 0.3 = | 3.8 + 4.9 = | 2.3 - 1.9 = |
| 7.7 + 0.7 = | 5.0 + 1.0 = | 8.5 + 0.2 = | 5.6 + 4.0 = |
| 5.9 - 3.2 = | 1.7 - 1.0 = | 1.4 + 6.5 = | 0.3 - 0.2 = |
| 6.7 - 3.0 = | 0.7 + 2.1 = | 4.3 + 2.1 = | 6.3 - 2.9 = |
| 9.0 - 5.2 = | 1.9 - 0.3 = | 5.1 - 2.6 = | 8.0 + 1.3 = |
| 7.7 - 4.3 = | 4.9 + 4.2 = | 9.0 + 0.6 = | 7.3 - 0.8 = |
| 3.6 + 2.5 = | 5.1 - 3.9 = | 8.9 + 1.0 = | 7.9 + 1.5 = |
| 0.3 - 0.2 = | 7.4 - 2.3 = | 1.5 + 7.1 = | 7.0 + 0.4 = |
| 2.2 + 2.8 = | 3.4 - 0.3 = | 5.0 - 3.1 = | 0.4 + 7.8 = |
| 9.0 - 8.5 = | 0.4 + 1.4 = | 7.5 - 3.3 = | 5.1 - 3.6 = |
| 6.4 + 2.2 = | 4.4 + 5.2 = | 1.0 + 7.6 = | 9.1 - 2.2 = |
| 9.6 - 6.6 = | 8.6 + 1.1 = | 7.1 - 1.1 = | 8.1 - 3.9 = |
| 3.0 + 3.1 = | 4.9 - 3.6 = | 9.9 - 2.0 = | 2.4 + 0.7 = |
| 6.0 - 5.8 = | 1.9 - 0.8 = | 1.9 - 0.9 = | 6.3 - 3.8 = |
| 5.0 - 3.2 = | 1.1 + 4.0 = | 8.8 + 0.7 = | 9.8 - 3.8 = |
| 4.2 - 3.5 = | 8.9 - 6.8 = | 3.9 - 2.0 = | 2.4 + 2.0 = |
| 5.6 + 2.9 = | 9.8 + 0.1 = | 9.5 - 8.6 = | 2.1 + 6.0 = |
| 4.9 - 4.5 = | 7.2 - 2.8 = | 8.8 - 1.9 = | 4.4 + 1.0 = |
| 7.4 - 3.9 = | 2.2 + 6.8 = | 2.6 - 1.2 = | 8.0 - 2.7 = |
| 5.3 - 4.8 = | 3.5 - 3.4 = | 8.5 - 0.8 = | 4.5 + 1.9 = |
| 9.4 - 7.1 = | 4.7 + 5.2 = | 3.6 + 0.5 = | 1.2 - 0.3 = |
| 4.4 + 2.2 = | 2.0 - 0.1 = | 5.0 - 1.7 = | 3.9 - 0.4 = |
| 9.0 - 9.0 = | 8.9 - 6.6 = | 3.2 + 3.1 = | 3.6 + 2.7 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 7.1 + 2.1 = 9.2 | 9.2 + 0.4 = 9.6 | 3.9 - 3.4 = 0.5 | 9.1 - 4.8 = 4.3 |
| 1.2 + 1.9 = 3.1 | 3.3 - 2.4 = 0.9 | 2.7 - 0.9 = 1.8 | 6.4 + 2.0 = 8.4 |
| 9.3 + 0.3 = 9.6 | 2.0 - 0.3 = 1.7 | 3.8 + 4.9 = 8.7 | 2.3 - 1.9 = 0.4 |
| 7.7 + 0.7 = 8.4 | 5.0 + 1.0 = 6 | 8.5 + 0.2 = 8.7 | 5.6 + 4.0 = 9.6 |
| 5.9 - 3.2 = 2.7 | 1.7 - 1.0 = 0.7 | 1.4 + 6.5 = 7.9 | 0.3 - 0.2 = 0.1 |
| 6.7 - 3.0 = 3.7 | 0.7 + 2.1 = 2.8 | 4.3 + 2.1 = 6.4 | 6.3 - 2.9 = 3.4 |
| 9.0 - 5.2 = 3.8 | 1.9 - 0.3 = 1.6 | 5.1 - 2.6 = 2.5 | 8.0 + 1.3 = 9.3 |
| 7.7 - 4.3 = 3.4 | 4.9 + 4.2 = 9.1 | 9.0 + 0.6 = 9.6 | 7.3 - 0.8 = 6.5 |
| 3.6 + 2.5 = 6.1 | 5.1 - 3.9 = 1.2 | 8.9 + 1.0 = 9.9 | 7.9 + 1.5 = 9.4 |
| 0.3 - 0.2 = 0.1 | 7.4 - 2.3 = 5.1 | 1.5 + 7.1 = 8.6 | 7.0 + 0.4 = 7.4 |
| 2.2 + 2.8 = 5 | 3.4 - 0.3 = 3.1 | 5.0 - 3.1 = 1.9 | 0.4 + 7.8 = 8.2 |
| 9.0 - 8.5 = 0.5 | 0.4 + 1.4 = 1.8 | 7.5 - 3.3 = 4.2 | 5.1 - 3.6 = 1.5 |
| 6.4 + 2.2 = 8.6 | 4.4 + 5.2 = 9.6 | 1.0 + 7.6 = 8.6 | 9.1 - 2.2 = 6.9 |
| 9.6 - 6.6 = 3 | 8.6 + 1.1 = 9.7 | 7.1 - 1.1 = 6 | 8.1 - 3.9 = 4.2 |
| 3.0 + 3.1 = 6.1 | 4.9 - 3.6 = 1.3 | 9.9 - 2.0 = 7.9 | 2.4 + 0.7 = 3.1 |
| 6.0 - 5.8 = 0.2 | 1.9 - 0.8 = 1.1 | 1.9 - 0.9 = 1 | 6.3 - 3.8 = 2.5 |
| 5.0 - 3.2 = 1.8 | 1.1 + 4.0 = 5.1 | 8.8 + 0.7 = 9.5 | 9.8 - 3.8 = 6 |
| 4.2 - 3.5 = 0.7 | 8.9 - 6.8 = 2.1 | 3.9 - 2.0 = 1.9 | 2.4 + 2.0 = 4.4 |
| 5.6 + 2.9 = 8.5 | 9.8 + 0.1 = 9.9 | 9.5 - 8.6 = 0.9 | 2.1 + 6.0 = 8.1 |
| 4.9 - 4.5 = 0.4 | 7.2 - 2.8 = 4.4 | 8.8 - 1.9 = 6.9 | 4.4 + 1.0 = 5.4 |
| 7.4 - 3.9 = 3.5 | 2.2 + 6.8 = 9 | 2.6 - 1.2 = 1.4 | 8.0 - 2.7 = 5.3 |
| 5.3 - 4.8 = 0.5 | 3.5 - 3.4 = 0.1 | 8.5 - 0.8 = 7.7 | 4.5 + 1.9 = 6.4 |
| 9.4 - 7.1 = 2.3 | 4.7 + 5.2 = 9.9 | 3.6 + 0.5 = 4.1 | 1.2 - 0.3 = 0.9 |
| 4.4 + 2.2 = 6.6 | 2.0 - 0.1 = 1.9 | 5.0 - 1.7 = 3.3 | 3.9 - 0.4 = 3.5 |
| 9.0 - 9.0 = 0 | 8.9 - 6.6 = 2.3 | 3.2 + 3.1 = 6.3 | 3.6 + 2.7 = 6.3 |