三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 4.8 + 2.6 = | 2.7 - 0.6 = | 5.4 + 0.9 = | 5.0 + 2.9 = |
| 5.9 + 2.4 = | 3.9 - 0.7 = | 8.7 - 0.5 = | 8.1 + 1.8 = |
| 1.6 - 0.4 = | 8.3 - 8.1 = | 2.1 + 5.6 = | 0.8 + 4.0 = |
| 9.9 - 7.6 = | 5.0 - 5.0 = | 6.2 + 2.8 = | 0.7 - 0.4 = |
| 2.9 + 6.6 = | 9.0 - 8.1 = | 7.7 + 1.5 = | 5.7 - 1.6 = |
| 5.9 + 3.2 = | 7.8 - 2.6 = | 5.2 + 2.3 = | 7.4 - 6.4 = |
| 2.3 + 7.4 = | 0.3 + 5.0 = | 8.7 + 1.1 = | 7.3 - 2.5 = |
| 0.8 - 0.8 = | 2.8 - 1.8 = | 5.9 - 1.3 = | 6.2 + 0.5 = |
| 1.3 + 8.0 = | 7.1 - 0.5 = | 9.6 + 0.3 = | 1.7 + 7.6 = |
| 6.5 + 0.2 = | 5.9 - 5.5 = | 3.6 + 3.8 = | 8.2 - 4.3 = |
| 1.4 + 0.3 = | 0.8 + 0.8 = | 6.3 - 5.1 = | 5.6 - 4.0 = |
| 8.6 - 8.2 = | 2.0 - 0.7 = | 2.4 + 5.8 = | 7.2 + 0.9 = |
| 5.5 + 2.3 = | 7.5 + 1.7 = | 1.6 - 0.5 = | 8.6 + 0.6 = |
| 3.6 + 5.7 = | 7.4 - 6.3 = | 3.5 - 2.7 = | 7.3 - 6.0 = |
| 4.7 - 2.3 = | 2.1 + 0.9 = | 4.6 - 0.4 = | 8.4 - 5.4 = |
| 1.0 + 7.6 = | 1.9 + 1.3 = | 1.0 + 8.0 = | 9.0 + 0.3 = |
| 1.2 - 0.2 = | 6.6 + 1.8 = | 6.6 + 1.7 = | 9.4 + 0.3 = |
| 4.5 + 4.6 = | 6.4 + 0.8 = | 3.5 + 6.0 = | 7.8 - 1.8 = |
| 4.8 - 4.7 = | 1.4 + 6.7 = | 5.3 + 2.6 = | 1.9 + 7.4 = |
| 4.6 - 2.2 = | 8.5 - 1.3 = | 7.0 + 2.4 = | 6.0 - 4.0 = |
| 9.4 + 0.4 = | 8.5 + 0.4 = | 8.3 + 0.2 = | 8.1 + 1.7 = |
| 5.9 + 3.1 = | 3.5 + 3.7 = | 3.5 - 1.0 = | 2.5 - 1.4 = |
| 1.9 + 1.1 = | 0.8 + 7.7 = | 4.4 + 1.8 = | 2.4 + 2.8 = |
| 1.7 - 0.4 = | 3.9 - 3.3 = | 0.7 + 1.5 = | 1.0 + 8.5 = |
| 8.1 + 0.5 = | 9.8 - 7.0 = | 5.7 - 0.2 = | 3.6 - 2.6 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 4.8 + 2.6 = 7.4 | 2.7 - 0.6 = 2.1 | 5.4 + 0.9 = 6.3 | 5.0 + 2.9 = 7.9 |
| 5.9 + 2.4 = 8.3 | 3.9 - 0.7 = 3.2 | 8.7 - 0.5 = 8.2 | 8.1 + 1.8 = 9.9 |
| 1.6 - 0.4 = 1.2 | 8.3 - 8.1 = 0.2 | 2.1 + 5.6 = 7.7 | 0.8 + 4.0 = 4.8 |
| 9.9 - 7.6 = 2.3 | 5.0 - 5.0 = 0 | 6.2 + 2.8 = 9 | 0.7 - 0.4 = 0.3 |
| 2.9 + 6.6 = 9.5 | 9.0 - 8.1 = 0.9 | 7.7 + 1.5 = 9.2 | 5.7 - 1.6 = 4.1 |
| 5.9 + 3.2 = 9.1 | 7.8 - 2.6 = 5.2 | 5.2 + 2.3 = 7.5 | 7.4 - 6.4 = 1 |
| 2.3 + 7.4 = 9.7 | 0.3 + 5.0 = 5.3 | 8.7 + 1.1 = 9.8 | 7.3 - 2.5 = 4.8 |
| 0.8 - 0.8 = 0 | 2.8 - 1.8 = 1 | 5.9 - 1.3 = 4.6 | 6.2 + 0.5 = 6.7 |
| 1.3 + 8.0 = 9.3 | 7.1 - 0.5 = 6.6 | 9.6 + 0.3 = 9.9 | 1.7 + 7.6 = 9.3 |
| 6.5 + 0.2 = 6.7 | 5.9 - 5.5 = 0.4 | 3.6 + 3.8 = 7.4 | 8.2 - 4.3 = 3.9 |
| 1.4 + 0.3 = 1.7 | 0.8 + 0.8 = 1.6 | 6.3 - 5.1 = 1.2 | 5.6 - 4.0 = 1.6 |
| 8.6 - 8.2 = 0.4 | 2.0 - 0.7 = 1.3 | 2.4 + 5.8 = 8.2 | 7.2 + 0.9 = 8.1 |
| 5.5 + 2.3 = 7.8 | 7.5 + 1.7 = 9.2 | 1.6 - 0.5 = 1.1 | 8.6 + 0.6 = 9.2 |
| 3.6 + 5.7 = 9.3 | 7.4 - 6.3 = 1.1 | 3.5 - 2.7 = 0.8 | 7.3 - 6.0 = 1.3 |
| 4.7 - 2.3 = 2.4 | 2.1 + 0.9 = 3 | 4.6 - 0.4 = 4.2 | 8.4 - 5.4 = 3 |
| 1.0 + 7.6 = 8.6 | 1.9 + 1.3 = 3.2 | 1.0 + 8.0 = 9 | 9.0 + 0.3 = 9.3 |
| 1.2 - 0.2 = 1 | 6.6 + 1.8 = 8.4 | 6.6 + 1.7 = 8.3 | 9.4 + 0.3 = 9.7 |
| 4.5 + 4.6 = 9.1 | 6.4 + 0.8 = 7.2 | 3.5 + 6.0 = 9.5 | 7.8 - 1.8 = 6 |
| 4.8 - 4.7 = 0.1 | 1.4 + 6.7 = 8.1 | 5.3 + 2.6 = 7.9 | 1.9 + 7.4 = 9.3 |
| 4.6 - 2.2 = 2.4 | 8.5 - 1.3 = 7.2 | 7.0 + 2.4 = 9.4 | 6.0 - 4.0 = 2 |
| 9.4 + 0.4 = 9.8 | 8.5 + 0.4 = 8.9 | 8.3 + 0.2 = 8.5 | 8.1 + 1.7 = 9.8 |
| 5.9 + 3.1 = 9 | 3.5 + 3.7 = 7.2 | 3.5 - 1.0 = 2.5 | 2.5 - 1.4 = 1.1 |
| 1.9 + 1.1 = 3 | 0.8 + 7.7 = 8.5 | 4.4 + 1.8 = 6.2 | 2.4 + 2.8 = 5.2 |
| 1.7 - 0.4 = 1.3 | 3.9 - 3.3 = 0.6 | 0.7 + 1.5 = 2.2 | 1.0 + 8.5 = 9.5 |
| 8.1 + 0.5 = 8.6 | 9.8 - 7.0 = 2.8 | 5.7 - 0.2 = 5.5 | 3.6 - 2.6 = 1 |