三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 9.8 + 0.2 = | 2.4 - 2.1 = | 8.7 + 0.1 = | 3.6 + 4.7 = |
| 9.0 - 7.1 = | 2.8 + 6.3 = | 6.3 + 2.3 = | 8.4 - 3.9 = |
| 1.4 - 0.8 = | 8.4 - 2.0 = | 7.1 + 2.1 = | 2.4 + 2.2 = |
| 1.0 + 1.7 = | 6.7 - 6.3 = | 2.9 + 1.5 = | 3.5 + 2.2 = |
| 3.6 + 2.9 = | 8.9 - 6.6 = | 2.1 + 4.6 = | 3.6 - 0.3 = |
| 7.9 - 2.0 = | 6.4 + 3.6 = | 4.6 - 0.6 = | 6.1 + 1.1 = |
| 1.0 - 1.0 = | 6.7 - 6.1 = | 7.7 - 2.2 = | 2.9 + 4.1 = |
| 1.1 - 0.3 = | 4.0 - 2.3 = | 9.3 - 2.4 = | 2.1 - 0.9 = |
| 5.9 - 4.8 = | 7.7 + 0.4 = | 3.1 - 2.8 = | 7.0 - 6.6 = |
| 6.7 + 0.6 = | 5.0 - 2.5 = | 4.8 - 2.8 = | 7.3 - 4.8 = |
| 2.8 + 6.9 = | 4.5 + 3.5 = | 5.0 - 4.8 = | 5.9 + 2.1 = |
| 0.4 - 0.4 = | 3.4 - 1.5 = | 7.1 - 1.4 = | 9.8 - 8.2 = |
| 9.4 - 4.1 = | 4.4 + 2.4 = | 2.4 - 2.1 = | 7.5 - 4.2 = |
| 2.8 - 2.6 = | 1.2 + 7.2 = | 1.5 + 3.7 = | 2.9 + 1.8 = |
| 3.0 - 2.1 = | 8.9 - 1.2 = | 2.2 - 0.4 = | 3.1 - 2.1 = |
| 9.6 + 0.4 = | 1.6 - 0.2 = | 6.1 + 0.6 = | 9.0 + 0.7 = |
| 9.3 - 1.6 = | 2.4 - 0.5 = | 2.1 + 7.0 = | 9.5 + 0.5 = |
| 1.6 + 8.2 = | 9.3 - 2.4 = | 7.0 + 1.9 = | 2.0 - 1.1 = |
| 3.8 - 0.8 = | 3.7 + 0.7 = | 10.0 - 8.2 = | 9.0 - 1.4 = |
| 7.8 - 3.4 = | 8.4 - 3.0 = | 1.1 + 4.5 = | 5.7 + 4.1 = |
| 3.0 + 1.7 = | 3.4 - 0.9 = | 7.0 + 2.0 = | 9.6 + 0.4 = |
| 4.4 + 0.9 = | 6.2 - 2.8 = | 8.5 - 4.9 = | 8.3 - 2.4 = |
| 7.1 - 5.8 = | 7.4 - 1.5 = | 1.2 - 0.7 = | 8.1 - 7.8 = |
| 6.5 + 2.0 = | 8.3 + 0.3 = | 8.5 + 1.1 = | 2.2 + 6.1 = |
| 4.6 - 4.1 = | 1.2 + 0.3 = | 5.9 - 5.0 = | 9.0 + 0.3 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 9.8 + 0.2 = 10 | 2.4 - 2.1 = 0.3 | 8.7 + 0.1 = 8.8 | 3.6 + 4.7 = 8.3 |
| 9.0 - 7.1 = 1.9 | 2.8 + 6.3 = 9.1 | 6.3 + 2.3 = 8.6 | 8.4 - 3.9 = 4.5 |
| 1.4 - 0.8 = 0.6 | 8.4 - 2.0 = 6.4 | 7.1 + 2.1 = 9.2 | 2.4 + 2.2 = 4.6 |
| 1.0 + 1.7 = 2.7 | 6.7 - 6.3 = 0.4 | 2.9 + 1.5 = 4.4 | 3.5 + 2.2 = 5.7 |
| 3.6 + 2.9 = 6.5 | 8.9 - 6.6 = 2.3 | 2.1 + 4.6 = 6.7 | 3.6 - 0.3 = 3.3 |
| 7.9 - 2.0 = 5.9 | 6.4 + 3.6 = 10 | 4.6 - 0.6 = 4 | 6.1 + 1.1 = 7.2 |
| 1.0 - 1.0 = 0 | 6.7 - 6.1 = 0.6 | 7.7 - 2.2 = 5.5 | 2.9 + 4.1 = 7 |
| 1.1 - 0.3 = 0.8 | 4.0 - 2.3 = 1.7 | 9.3 - 2.4 = 6.9 | 2.1 - 0.9 = 1.2 |
| 5.9 - 4.8 = 1.1 | 7.7 + 0.4 = 8.1 | 3.1 - 2.8 = 0.3 | 7.0 - 6.6 = 0.4 |
| 6.7 + 0.6 = 7.3 | 5.0 - 2.5 = 2.5 | 4.8 - 2.8 = 2 | 7.3 - 4.8 = 2.5 |
| 2.8 + 6.9 = 9.7 | 4.5 + 3.5 = 8 | 5.0 - 4.8 = 0.2 | 5.9 + 2.1 = 8 |
| 0.4 - 0.4 = 0 | 3.4 - 1.5 = 1.9 | 7.1 - 1.4 = 5.7 | 9.8 - 8.2 = 1.6 |
| 9.4 - 4.1 = 5.3 | 4.4 + 2.4 = 6.8 | 2.4 - 2.1 = 0.3 | 7.5 - 4.2 = 3.3 |
| 2.8 - 2.6 = 0.2 | 1.2 + 7.2 = 8.4 | 1.5 + 3.7 = 5.2 | 2.9 + 1.8 = 4.7 |
| 3.0 - 2.1 = 0.9 | 8.9 - 1.2 = 7.7 | 2.2 - 0.4 = 1.8 | 3.1 - 2.1 = 1 |
| 9.6 + 0.4 = 10 | 1.6 - 0.2 = 1.4 | 6.1 + 0.6 = 6.7 | 9.0 + 0.7 = 9.7 |
| 9.3 - 1.6 = 7.7 | 2.4 - 0.5 = 1.9 | 2.1 + 7.0 = 9.1 | 9.5 + 0.5 = 10 |
| 1.6 + 8.2 = 9.8 | 9.3 - 2.4 = 6.9 | 7.0 + 1.9 = 8.9 | 2.0 - 1.1 = 0.9 |
| 3.8 - 0.8 = 3 | 3.7 + 0.7 = 4.4 | 10.0 - 8.2 = 1.8 | 9.0 - 1.4 = 7.6 |
| 7.8 - 3.4 = 4.4 | 8.4 - 3.0 = 5.4 | 1.1 + 4.5 = 5.6 | 5.7 + 4.1 = 9.8 |
| 3.0 + 1.7 = 4.7 | 3.4 - 0.9 = 2.5 | 7.0 + 2.0 = 9 | 9.6 + 0.4 = 10 |
| 4.4 + 0.9 = 5.3 | 6.2 - 2.8 = 3.4 | 8.5 - 4.9 = 3.6 | 8.3 - 2.4 = 5.9 |
| 7.1 - 5.8 = 1.3 | 7.4 - 1.5 = 5.9 | 1.2 - 0.7 = 0.5 | 8.1 - 7.8 = 0.3 |
| 6.5 + 2.0 = 8.5 | 8.3 + 0.3 = 8.6 | 8.5 + 1.1 = 9.6 | 2.2 + 6.1 = 8.3 |
| 4.6 - 4.1 = 0.5 | 1.2 + 0.3 = 1.5 | 5.9 - 5.0 = 0.9 | 9.0 + 0.3 = 9.3 |