三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 1.4 + 4.3 = | 1.5 + 3.1 = | 4.2 - 1.1 = | 1.9 - 1.0 = |
| 2.9 - 2.4 = | 6.2 + 1.3 = | 3.4 - 0.8 = | 2.4 - 0.2 = |
| 5.7 - 3.2 = | 5.6 + 2.1 = | 2.3 + 0.2 = | 5.8 - 0.5 = |
| 7.3 - 2.1 = | 5.1 + 0.8 = | 3.6 - 3.3 = | 5.0 - 4.1 = |
| 5.6 + 1.2 = | 3.8 + 5.8 = | 3.9 - 0.6 = | 5.6 + 2.4 = |
| 3.7 + 3.2 = | 4.9 - 3.9 = | 6.7 - 2.3 = | 4.2 + 4.8 = |
| 1.4 - 0.5 = | 8.2 - 0.2 = | 4.0 - 0.9 = | 6.7 - 3.8 = |
| 3.7 + 5.6 = | 1.9 + 4.9 = | 1.4 - 0.7 = | 4.2 + 2.8 = |
| 9.8 + 0.2 = | 9.6 - 8.4 = | 1.5 + 2.5 = | 9.2 - 1.1 = |
| 0.1 + 1.1 = | 2.8 + 1.9 = | 7.3 + 2.6 = | 6.3 + 0.5 = |
| 4.7 - 2.3 = | 8.8 + 0.3 = | 2.6 + 5.9 = | 6.7 + 0.7 = |
| 5.9 - 1.5 = | 8.5 - 0.1 = | 2.4 + 4.8 = | 3.1 - 2.0 = |
| 2.0 + 4.2 = | 6.1 + 0.5 = | 3.6 - 3.0 = | 5.3 + 0.6 = |
| 6.8 - 2.3 = | 5.8 + 3.8 = | 7.4 + 2.3 = | 8.0 + 1.9 = |
| 5.0 + 1.0 = | 0.7 + 5.0 = | 4.2 + 2.8 = | 6.8 + 3.1 = |
| 6.2 - 5.7 = | 3.7 + 5.3 = | 3.5 + 5.6 = | 9.8 - 8.8 = |
| 9.2 + 0.3 = | 5.2 - 4.9 = | 1.6 + 4.0 = | 3.0 - 3.0 = |
| 0.6 + 9.0 = | 6.2 - 3.6 = | 8.4 + 0.5 = | 3.6 - 1.9 = |
| 3.8 + 5.7 = | 6.9 - 5.1 = | 6.6 - 6.1 = | 7.3 + 2.5 = |
| 6.6 + 2.5 = | 1.9 + 1.2 = | 4.5 + 4.6 = | 7.7 + 0.1 = |
| 2.2 + 6.1 = | 9.6 - 7.8 = | 7.8 - 6.0 = | 7.6 - 2.0 = |
| 6.2 + 0.5 = | 4.3 - 2.4 = | 3.3 - 0.6 = | 5.7 + 1.4 = |
| 3.6 + 3.8 = | 0.4 - 0.4 = | 0.4 - 0.1 = | 2.2 + 3.0 = |
| 9.0 + 0.2 = | 1.4 + 0.9 = | 9.3 - 7.8 = | 9.3 - 5.9 = |
| 9.9 + 0.1 = | 0.9 - 0.8 = | 0.9 - 0.3 = | 9.7 - 1.5 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 1.4 + 4.3 = 5.7 | 1.5 + 3.1 = 4.6 | 4.2 - 1.1 = 3.1 | 1.9 - 1.0 = 0.9 |
| 2.9 - 2.4 = 0.5 | 6.2 + 1.3 = 7.5 | 3.4 - 0.8 = 2.6 | 2.4 - 0.2 = 2.2 |
| 5.7 - 3.2 = 2.5 | 5.6 + 2.1 = 7.7 | 2.3 + 0.2 = 2.5 | 5.8 - 0.5 = 5.3 |
| 7.3 - 2.1 = 5.2 | 5.1 + 0.8 = 5.9 | 3.6 - 3.3 = 0.3 | 5.0 - 4.1 = 0.9 |
| 5.6 + 1.2 = 6.8 | 3.8 + 5.8 = 9.6 | 3.9 - 0.6 = 3.3 | 5.6 + 2.4 = 8 |
| 3.7 + 3.2 = 6.9 | 4.9 - 3.9 = 1 | 6.7 - 2.3 = 4.4 | 4.2 + 4.8 = 9 |
| 1.4 - 0.5 = 0.9 | 8.2 - 0.2 = 8 | 4.0 - 0.9 = 3.1 | 6.7 - 3.8 = 2.9 |
| 3.7 + 5.6 = 9.3 | 1.9 + 4.9 = 6.8 | 1.4 - 0.7 = 0.7 | 4.2 + 2.8 = 7 |
| 9.8 + 0.2 = 10 | 9.6 - 8.4 = 1.2 | 1.5 + 2.5 = 4 | 9.2 - 1.1 = 8.1 |
| 0.1 + 1.1 = 1.2 | 2.8 + 1.9 = 4.7 | 7.3 + 2.6 = 9.9 | 6.3 + 0.5 = 6.8 |
| 4.7 - 2.3 = 2.4 | 8.8 + 0.3 = 9.1 | 2.6 + 5.9 = 8.5 | 6.7 + 0.7 = 7.4 |
| 5.9 - 1.5 = 4.4 | 8.5 - 0.1 = 8.4 | 2.4 + 4.8 = 7.2 | 3.1 - 2.0 = 1.1 |
| 2.0 + 4.2 = 6.2 | 6.1 + 0.5 = 6.6 | 3.6 - 3.0 = 0.6 | 5.3 + 0.6 = 5.9 |
| 6.8 - 2.3 = 4.5 | 5.8 + 3.8 = 9.6 | 7.4 + 2.3 = 9.7 | 8.0 + 1.9 = 9.9 |
| 5.0 + 1.0 = 6 | 0.7 + 5.0 = 5.7 | 4.2 + 2.8 = 7 | 6.8 + 3.1 = 9.9 |
| 6.2 - 5.7 = 0.5 | 3.7 + 5.3 = 9 | 3.5 + 5.6 = 9.1 | 9.8 - 8.8 = 1 |
| 9.2 + 0.3 = 9.5 | 5.2 - 4.9 = 0.3 | 1.6 + 4.0 = 5.6 | 3.0 - 3.0 = 0 |
| 0.6 + 9.0 = 9.6 | 6.2 - 3.6 = 2.6 | 8.4 + 0.5 = 8.9 | 3.6 - 1.9 = 1.7 |
| 3.8 + 5.7 = 9.5 | 6.9 - 5.1 = 1.8 | 6.6 - 6.1 = 0.5 | 7.3 + 2.5 = 9.8 |
| 6.6 + 2.5 = 9.1 | 1.9 + 1.2 = 3.1 | 4.5 + 4.6 = 9.1 | 7.7 + 0.1 = 7.8 |
| 2.2 + 6.1 = 8.3 | 9.6 - 7.8 = 1.8 | 7.8 - 6.0 = 1.8 | 7.6 - 2.0 = 5.6 |
| 6.2 + 0.5 = 6.7 | 4.3 - 2.4 = 1.9 | 3.3 - 0.6 = 2.7 | 5.7 + 1.4 = 7.1 |
| 3.6 + 3.8 = 7.4 | 0.4 - 0.4 = 0 | 0.4 - 0.1 = 0.3 | 2.2 + 3.0 = 5.2 |
| 9.0 + 0.2 = 9.2 | 1.4 + 0.9 = 2.3 | 9.3 - 7.8 = 1.5 | 9.3 - 5.9 = 3.4 |
| 9.9 + 0.1 = 10 | 0.9 - 0.8 = 0.1 | 0.9 - 0.3 = 0.6 | 9.7 - 1.5 = 8.2 |