三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 2.8 - 2.8 = | 1.7 + 3.3 = | 2.4 - 0.7 = | 7.1 + 0.5 = |
| 3.3 - 3.0 = | 4.2 - 0.6 = | 8.5 - 2.4 = | 4.5 + 2.8 = |
| 3.8 - 1.9 = | 4.0 - 1.6 = | 1.0 + 7.3 = | 4.7 + 0.9 = |
| 6.3 + 3.3 = | 9.1 - 7.6 = | 8.9 - 0.1 = | 6.7 + 2.5 = |
| 0.8 - 0.2 = | 8.7 + 0.2 = | 7.9 - 0.2 = | 6.2 + 3.4 = |
| 2.3 + 1.0 = | 9.7 + 0.2 = | 9.9 - 5.5 = | 1.2 - 0.5 = |
| 8.2 + 0.3 = | 1.5 + 3.5 = | 1.3 - 0.7 = | 8.9 - 7.3 = |
| 0.1 + 2.2 = | 0.9 - 0.3 = | 7.3 - 4.2 = | 3.7 - 2.8 = |
| 2.1 + 1.3 = | 0.7 - 0.3 = | 3.0 + 6.8 = | 2.9 + 4.0 = |
| 7.5 - 2.0 = | 9.1 + 0.3 = | 9.2 - 5.3 = | 4.0 + 2.4 = |
| 1.5 + 7.2 = | 3.1 + 4.2 = | 1.3 + 4.8 = | 4.4 + 5.6 = |
| 6.1 - 2.6 = | 1.9 - 0.5 = | 5.4 + 2.9 = | 0.8 + 2.3 = |
| 4.1 - 1.1 = | 3.0 + 1.7 = | 7.3 + 1.3 = | 5.9 - 0.6 = |
| 7.6 - 3.1 = | 0.2 - 0.1 = | 7.2 + 0.8 = | 9.2 - 3.4 = |
| 6.0 - 2.3 = | 0.6 - 0.2 = | 5.7 - 5.4 = | 2.2 - 0.9 = |
| 2.5 - 0.8 = | 1.4 - 0.4 = | 5.8 + 1.1 = | 4.3 + 4.3 = |
| 7.9 + 1.7 = | 1.9 + 7.7 = | 0.7 + 8.2 = | 1.1 + 8.7 = |
| 8.0 - 3.7 = | 8.4 - 1.9 = | 6.1 - 2.6 = | 8.5 + 0.3 = |
| 6.7 - 5.0 = | 6.6 + 0.2 = | 9.0 + 0.5 = | 5.7 - 1.7 = |
| 5.1 - 1.8 = | 6.1 - 5.8 = | 5.0 + 3.4 = | 8.7 - 7.6 = |
| 6.5 - 2.6 = | 6.3 + 2.3 = | 7.6 - 7.1 = | 8.5 - 5.3 = |
| 5.5 - 2.6 = | 5.4 - 0.6 = | 1.3 - 1.0 = | 2.2 - 1.5 = |
| 0.8 + 7.9 = | 0.2 - 0.2 = | 5.8 - 2.9 = | 8.3 - 5.8 = |
| 9.3 - 5.5 = | 8.6 - 2.3 = | 1.7 + 1.9 = | 8.6 - 6.5 = |
| 8.1 + 1.0 = | 5.0 - 4.1 = | 5.6 + 4.4 = | 2.6 + 1.9 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 2.8 - 2.8 = 0 | 1.7 + 3.3 = 5 | 2.4 - 0.7 = 1.7 | 7.1 + 0.5 = 7.6 |
| 3.3 - 3.0 = 0.3 | 4.2 - 0.6 = 3.6 | 8.5 - 2.4 = 6.1 | 4.5 + 2.8 = 7.3 |
| 3.8 - 1.9 = 1.9 | 4.0 - 1.6 = 2.4 | 1.0 + 7.3 = 8.3 | 4.7 + 0.9 = 5.6 |
| 6.3 + 3.3 = 9.6 | 9.1 - 7.6 = 1.5 | 8.9 - 0.1 = 8.8 | 6.7 + 2.5 = 9.2 |
| 0.8 - 0.2 = 0.6 | 8.7 + 0.2 = 8.9 | 7.9 - 0.2 = 7.7 | 6.2 + 3.4 = 9.6 |
| 2.3 + 1.0 = 3.3 | 9.7 + 0.2 = 9.9 | 9.9 - 5.5 = 4.4 | 1.2 - 0.5 = 0.7 |
| 8.2 + 0.3 = 8.5 | 1.5 + 3.5 = 5 | 1.3 - 0.7 = 0.6 | 8.9 - 7.3 = 1.6 |
| 0.1 + 2.2 = 2.3 | 0.9 - 0.3 = 0.6 | 7.3 - 4.2 = 3.1 | 3.7 - 2.8 = 0.9 |
| 2.1 + 1.3 = 3.4 | 0.7 - 0.3 = 0.4 | 3.0 + 6.8 = 9.8 | 2.9 + 4.0 = 6.9 |
| 7.5 - 2.0 = 5.5 | 9.1 + 0.3 = 9.4 | 9.2 - 5.3 = 3.9 | 4.0 + 2.4 = 6.4 |
| 1.5 + 7.2 = 8.7 | 3.1 + 4.2 = 7.3 | 1.3 + 4.8 = 6.1 | 4.4 + 5.6 = 10 |
| 6.1 - 2.6 = 3.5 | 1.9 - 0.5 = 1.4 | 5.4 + 2.9 = 8.3 | 0.8 + 2.3 = 3.1 |
| 4.1 - 1.1 = 3 | 3.0 + 1.7 = 4.7 | 7.3 + 1.3 = 8.6 | 5.9 - 0.6 = 5.3 |
| 7.6 - 3.1 = 4.5 | 0.2 - 0.1 = 0.1 | 7.2 + 0.8 = 8 | 9.2 - 3.4 = 5.8 |
| 6.0 - 2.3 = 3.7 | 0.6 - 0.2 = 0.4 | 5.7 - 5.4 = 0.3 | 2.2 - 0.9 = 1.3 |
| 2.5 - 0.8 = 1.7 | 1.4 - 0.4 = 1 | 5.8 + 1.1 = 6.9 | 4.3 + 4.3 = 8.6 |
| 7.9 + 1.7 = 9.6 | 1.9 + 7.7 = 9.6 | 0.7 + 8.2 = 8.9 | 1.1 + 8.7 = 9.8 |
| 8.0 - 3.7 = 4.3 | 8.4 - 1.9 = 6.5 | 6.1 - 2.6 = 3.5 | 8.5 + 0.3 = 8.8 |
| 6.7 - 5.0 = 1.7 | 6.6 + 0.2 = 6.8 | 9.0 + 0.5 = 9.5 | 5.7 - 1.7 = 4 |
| 5.1 - 1.8 = 3.3 | 6.1 - 5.8 = 0.3 | 5.0 + 3.4 = 8.4 | 8.7 - 7.6 = 1.1 |
| 6.5 - 2.6 = 3.9 | 6.3 + 2.3 = 8.6 | 7.6 - 7.1 = 0.5 | 8.5 - 5.3 = 3.2 |
| 5.5 - 2.6 = 2.9 | 5.4 - 0.6 = 4.8 | 1.3 - 1.0 = 0.3 | 2.2 - 1.5 = 0.7 |
| 0.8 + 7.9 = 8.7 | 0.2 - 0.2 = 0 | 5.8 - 2.9 = 2.9 | 8.3 - 5.8 = 2.5 |
| 9.3 - 5.5 = 3.8 | 8.6 - 2.3 = 6.3 | 1.7 + 1.9 = 3.6 | 8.6 - 6.5 = 2.1 |
| 8.1 + 1.0 = 9.1 | 5.0 - 4.1 = 0.9 | 5.6 + 4.4 = 10 | 2.6 + 1.9 = 4.5 |