三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 4.0 - 2.8 = | 8.8 - 3.7 = | 2.6 - 0.3 = | 7.9 - 5.5 = |
| 8.7 - 7.9 = | 7.4 + 0.5 = | 8.9 - 1.3 = | 9.5 + 0.4 = |
| 3.3 + 6.5 = | 2.8 - 2.3 = | 6.8 + 2.4 = | 4.0 - 1.1 = |
| 7.4 + 1.4 = | 5.6 - 0.8 = | 1.1 + 5.1 = | 4.0 + 2.4 = |
| 2.7 - 1.0 = | 1.2 + 0.7 = | 1.3 - 1.0 = | 0.3 - 0.3 = |
| 5.7 + 3.6 = | 1.1 + 2.0 = | 4.7 - 4.0 = | 9.5 + 0.5 = |
| 6.4 - 5.2 = | 2.2 - 1.3 = | 1.3 + 5.1 = | 6.2 - 0.6 = |
| 3.2 - 0.2 = | 1.0 + 7.4 = | 7.3 + 0.8 = | 1.5 + 5.6 = |
| 8.5 + 1.1 = | 6.6 + 0.6 = | 0.3 - 0.2 = | 7.3 - 4.5 = |
| 0.5 - 0.1 = | 1.7 + 4.0 = | 6.4 - 2.3 = | 5.9 - 2.5 = |
| 0.6 + 0.3 = | 2.3 - 2.2 = | 6.0 + 3.9 = | 6.2 - 6.1 = |
| 4.3 - 2.8 = | 6.2 + 2.0 = | 2.4 + 2.7 = | 2.9 + 6.7 = |
| 9.7 - 2.0 = | 6.6 + 0.5 = | 5.9 - 1.5 = | 3.4 + 0.5 = |
| 7.7 - 3.3 = | 7.3 - 5.0 = | 5.0 + 3.9 = | 4.2 - 4.0 = |
| 3.7 + 4.3 = | 1.9 - 0.8 = | 3.1 + 0.9 = | 3.4 - 2.9 = |
| 0.9 - 0.9 = | 6.1 - 2.1 = | 9.3 + 0.4 = | 4.8 + 2.2 = |
| 5.8 + 0.9 = | 4.3 - 2.8 = | 2.4 + 1.0 = | 5.2 + 4.3 = |
| 9.7 - 9.2 = | 9.0 + 0.9 = | 6.6 + 1.2 = | 3.5 - 3.3 = |
| 0.2 - 0.2 = | 1.9 - 0.9 = | 1.1 + 8.2 = | 8.5 - 6.4 = |
| 9.7 - 7.1 = | 9.1 - 5.4 = | 4.6 - 3.3 = | 1.7 + 6.1 = |
| 1.1 - 0.9 = | 2.5 + 5.7 = | 6.7 - 2.7 = | 0.4 - 0.2 = |
| 6.2 + 0.9 = | 9.0 - 6.1 = | 2.8 + 6.1 = | 2.8 - 2.4 = |
| 3.5 - 2.2 = | 1.1 - 1.1 = | 7.0 - 3.9 = | 4.1 - 1.7 = |
| 8.1 - 6.5 = | 3.6 - 0.1 = | 2.7 - 2.6 = | 3.7 - 1.2 = |
| 3.0 + 4.0 = | 8.2 + 1.7 = | 9.2 + 0.5 = | 0.5 - 0.2 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 4.0 - 2.8 = 1.2 | 8.8 - 3.7 = 5.1 | 2.6 - 0.3 = 2.3 | 7.9 - 5.5 = 2.4 |
| 8.7 - 7.9 = 0.8 | 7.4 + 0.5 = 7.9 | 8.9 - 1.3 = 7.6 | 9.5 + 0.4 = 9.9 |
| 3.3 + 6.5 = 9.8 | 2.8 - 2.3 = 0.5 | 6.8 + 2.4 = 9.2 | 4.0 - 1.1 = 2.9 |
| 7.4 + 1.4 = 8.8 | 5.6 - 0.8 = 4.8 | 1.1 + 5.1 = 6.2 | 4.0 + 2.4 = 6.4 |
| 2.7 - 1.0 = 1.7 | 1.2 + 0.7 = 1.9 | 1.3 - 1.0 = 0.3 | 0.3 - 0.3 = 0 |
| 5.7 + 3.6 = 9.3 | 1.1 + 2.0 = 3.1 | 4.7 - 4.0 = 0.7 | 9.5 + 0.5 = 10 |
| 6.4 - 5.2 = 1.2 | 2.2 - 1.3 = 0.9 | 1.3 + 5.1 = 6.4 | 6.2 - 0.6 = 5.6 |
| 3.2 - 0.2 = 3 | 1.0 + 7.4 = 8.4 | 7.3 + 0.8 = 8.1 | 1.5 + 5.6 = 7.1 |
| 8.5 + 1.1 = 9.6 | 6.6 + 0.6 = 7.2 | 0.3 - 0.2 = 0.1 | 7.3 - 4.5 = 2.8 |
| 0.5 - 0.1 = 0.4 | 1.7 + 4.0 = 5.7 | 6.4 - 2.3 = 4.1 | 5.9 - 2.5 = 3.4 |
| 0.6 + 0.3 = 0.9 | 2.3 - 2.2 = 0.1 | 6.0 + 3.9 = 9.9 | 6.2 - 6.1 = 0.1 |
| 4.3 - 2.8 = 1.5 | 6.2 + 2.0 = 8.2 | 2.4 + 2.7 = 5.1 | 2.9 + 6.7 = 9.6 |
| 9.7 - 2.0 = 7.7 | 6.6 + 0.5 = 7.1 | 5.9 - 1.5 = 4.4 | 3.4 + 0.5 = 3.9 |
| 7.7 - 3.3 = 4.4 | 7.3 - 5.0 = 2.3 | 5.0 + 3.9 = 8.9 | 4.2 - 4.0 = 0.2 |
| 3.7 + 4.3 = 8 | 1.9 - 0.8 = 1.1 | 3.1 + 0.9 = 4 | 3.4 - 2.9 = 0.5 |
| 0.9 - 0.9 = 0 | 6.1 - 2.1 = 4 | 9.3 + 0.4 = 9.7 | 4.8 + 2.2 = 7 |
| 5.8 + 0.9 = 6.7 | 4.3 - 2.8 = 1.5 | 2.4 + 1.0 = 3.4 | 5.2 + 4.3 = 9.5 |
| 9.7 - 9.2 = 0.5 | 9.0 + 0.9 = 9.9 | 6.6 + 1.2 = 7.8 | 3.5 - 3.3 = 0.2 |
| 0.2 - 0.2 = 0 | 1.9 - 0.9 = 1 | 1.1 + 8.2 = 9.3 | 8.5 - 6.4 = 2.1 |
| 9.7 - 7.1 = 2.6 | 9.1 - 5.4 = 3.7 | 4.6 - 3.3 = 1.3 | 1.7 + 6.1 = 7.8 |
| 1.1 - 0.9 = 0.2 | 2.5 + 5.7 = 8.2 | 6.7 - 2.7 = 4 | 0.4 - 0.2 = 0.2 |
| 6.2 + 0.9 = 7.1 | 9.0 - 6.1 = 2.9 | 2.8 + 6.1 = 8.9 | 2.8 - 2.4 = 0.4 |
| 3.5 - 2.2 = 1.3 | 1.1 - 1.1 = 0 | 7.0 - 3.9 = 3.1 | 4.1 - 1.7 = 2.4 |
| 8.1 - 6.5 = 1.6 | 3.6 - 0.1 = 3.5 | 2.7 - 2.6 = 0.1 | 3.7 - 1.2 = 2.5 |
| 3.0 + 4.0 = 7 | 8.2 + 1.7 = 9.9 | 9.2 + 0.5 = 9.7 | 0.5 - 0.2 = 0.3 |