三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 4.2 + 4.4 = | 2.7 + 2.8 = | 9.9 + 0.1 = | 4.2 + 3.9 = |
| 7.8 - 6.3 = | 7.4 + 0.9 = | 2.8 - 0.1 = | 5.7 + 3.0 = |
| 6.0 - 2.4 = | 9.4 + 0.1 = | 5.7 - 1.4 = | 6.3 - 4.1 = |
| 1.7 - 1.5 = | 8.2 - 1.9 = | 1.3 - 0.9 = | 7.7 + 0.3 = |
| 3.4 - 0.4 = | 6.2 + 2.6 = | 9.6 + 0.3 = | 6.8 - 6.0 = |
| 1.1 + 4.5 = | 2.2 - 2.0 = | 7.3 + 2.4 = | 2.8 - 0.9 = |
| 5.6 + 3.0 = | 2.3 - 1.8 = | 8.9 - 6.2 = | 9.3 + 0.6 = |
| 0.5 - 0.2 = | 2.7 + 2.4 = | 6.2 + 1.0 = | 4.7 + 1.0 = |
| 3.9 - 2.9 = | 8.2 - 2.2 = | 3.0 - 1.3 = | 5.7 + 2.9 = |
| 3.3 + 5.6 = | 1.7 - 1.5 = | 4.6 - 3.7 = | 9.7 + 0.3 = |
| 7.2 + 2.7 = | 0.8 - 0.2 = | 1.2 - 0.3 = | 4.1 - 0.5 = |
| 3.4 + 5.2 = | 5.7 + 3.1 = | 7.7 + 2.2 = | 2.4 - 0.7 = |
| 1.0 + 2.6 = | 7.3 - 1.4 = | 9.5 + 0.4 = | 3.1 + 3.5 = |
| 1.5 - 1.4 = | 3.3 + 6.3 = | 6.2 - 3.2 = | 1.9 + 4.3 = |
| 6.9 + 1.4 = | 1.6 - 0.9 = | 0.8 - 0.3 = | 4.5 + 0.6 = |
| 1.4 - 0.5 = | 1.6 + 6.2 = | 2.8 - 2.8 = | 8.2 - 6.8 = |
| 8.6 + 0.2 = | 0.8 - 0.3 = | 6.4 + 3.4 = | 7.5 - 4.9 = |
| 0.7 - 0.1 = | 5.3 + 4.6 = | 9.9 - 5.4 = | 7.5 + 1.5 = |
| 2.5 + 5.9 = | 0.4 - 0.1 = | 1.5 - 0.4 = | 4.7 + 4.4 = |
| 9.4 + 0.4 = | 3.2 - 0.5 = | 6.6 - 1.6 = | 8.2 + 0.8 = |
| 9.9 - 5.5 = | 7.6 - 1.2 = | 4.1 + 4.3 = | 2.7 + 5.0 = |
| 7.9 - 2.0 = | 8.2 - 3.9 = | 5.9 - 1.7 = | 0.8 + 1.9 = |
| 7.2 - 5.2 = | 7.7 - 5.7 = | 8.8 - 7.6 = | 6.4 - 5.5 = |
| 8.1 - 7.0 = | 5.8 + 1.4 = | 2.8 + 4.5 = | 5.7 + 0.8 = |
| 3.6 + 3.0 = | 6.2 + 3.8 = | 2.7 - 0.2 = | 0.9 + 7.4 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 4.2 + 4.4 = 8.6 | 2.7 + 2.8 = 5.5 | 9.9 + 0.1 = 10 | 4.2 + 3.9 = 8.1 |
| 7.8 - 6.3 = 1.5 | 7.4 + 0.9 = 8.3 | 2.8 - 0.1 = 2.7 | 5.7 + 3.0 = 8.7 |
| 6.0 - 2.4 = 3.6 | 9.4 + 0.1 = 9.5 | 5.7 - 1.4 = 4.3 | 6.3 - 4.1 = 2.2 |
| 1.7 - 1.5 = 0.2 | 8.2 - 1.9 = 6.3 | 1.3 - 0.9 = 0.4 | 7.7 + 0.3 = 8 |
| 3.4 - 0.4 = 3 | 6.2 + 2.6 = 8.8 | 9.6 + 0.3 = 9.9 | 6.8 - 6.0 = 0.8 |
| 1.1 + 4.5 = 5.6 | 2.2 - 2.0 = 0.2 | 7.3 + 2.4 = 9.7 | 2.8 - 0.9 = 1.9 |
| 5.6 + 3.0 = 8.6 | 2.3 - 1.8 = 0.5 | 8.9 - 6.2 = 2.7 | 9.3 + 0.6 = 9.9 |
| 0.5 - 0.2 = 0.3 | 2.7 + 2.4 = 5.1 | 6.2 + 1.0 = 7.2 | 4.7 + 1.0 = 5.7 |
| 3.9 - 2.9 = 1 | 8.2 - 2.2 = 6 | 3.0 - 1.3 = 1.7 | 5.7 + 2.9 = 8.6 |
| 3.3 + 5.6 = 8.9 | 1.7 - 1.5 = 0.2 | 4.6 - 3.7 = 0.9 | 9.7 + 0.3 = 10 |
| 7.2 + 2.7 = 9.9 | 0.8 - 0.2 = 0.6 | 1.2 - 0.3 = 0.9 | 4.1 - 0.5 = 3.6 |
| 3.4 + 5.2 = 8.6 | 5.7 + 3.1 = 8.8 | 7.7 + 2.2 = 9.9 | 2.4 - 0.7 = 1.7 |
| 1.0 + 2.6 = 3.6 | 7.3 - 1.4 = 5.9 | 9.5 + 0.4 = 9.9 | 3.1 + 3.5 = 6.6 |
| 1.5 - 1.4 = 0.1 | 3.3 + 6.3 = 9.6 | 6.2 - 3.2 = 3 | 1.9 + 4.3 = 6.2 |
| 6.9 + 1.4 = 8.3 | 1.6 - 0.9 = 0.7 | 0.8 - 0.3 = 0.5 | 4.5 + 0.6 = 5.1 |
| 1.4 - 0.5 = 0.9 | 1.6 + 6.2 = 7.8 | 2.8 - 2.8 = 0 | 8.2 - 6.8 = 1.4 |
| 8.6 + 0.2 = 8.8 | 0.8 - 0.3 = 0.5 | 6.4 + 3.4 = 9.8 | 7.5 - 4.9 = 2.6 |
| 0.7 - 0.1 = 0.6 | 5.3 + 4.6 = 9.9 | 9.9 - 5.4 = 4.5 | 7.5 + 1.5 = 9 |
| 2.5 + 5.9 = 8.4 | 0.4 - 0.1 = 0.3 | 1.5 - 0.4 = 1.1 | 4.7 + 4.4 = 9.1 |
| 9.4 + 0.4 = 9.8 | 3.2 - 0.5 = 2.7 | 6.6 - 1.6 = 5 | 8.2 + 0.8 = 9 |
| 9.9 - 5.5 = 4.4 | 7.6 - 1.2 = 6.4 | 4.1 + 4.3 = 8.4 | 2.7 + 5.0 = 7.7 |
| 7.9 - 2.0 = 5.9 | 8.2 - 3.9 = 4.3 | 5.9 - 1.7 = 4.2 | 0.8 + 1.9 = 2.7 |
| 7.2 - 5.2 = 2 | 7.7 - 5.7 = 2 | 8.8 - 7.6 = 1.2 | 6.4 - 5.5 = 0.9 |
| 8.1 - 7.0 = 1.1 | 5.8 + 1.4 = 7.2 | 2.8 + 4.5 = 7.3 | 5.7 + 0.8 = 6.5 |
| 3.6 + 3.0 = 6.6 | 6.2 + 3.8 = 10 | 2.7 - 0.2 = 2.5 | 0.9 + 7.4 = 8.3 |