三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 4.7 + 0.3 = | 5.5 - 0.6 = | 3.9 + 5.5 = | 2.3 + 1.0 = |
| 1.2 - 0.4 = | 9.1 - 1.6 = | 1.0 + 8.1 = | 7.1 + 0.2 = |
| 8.7 - 2.9 = | 4.6 + 3.6 = | 7.6 + 2.2 = | 2.8 + 1.7 = |
| 8.6 - 0.7 = | 1.5 - 0.6 = | 3.1 + 5.3 = | 2.2 + 4.3 = |
| 1.6 + 6.3 = | 0.9 + 6.5 = | 5.0 + 0.6 = | 4.3 - 1.2 = |
| 7.5 - 2.0 = | 8.9 + 0.8 = | 0.4 - 0.3 = | 4.2 + 5.5 = |
| 3.5 + 6.1 = | 0.6 + 1.9 = | 6.4 - 6.3 = | 0.9 + 1.9 = |
| 6.8 + 1.4 = | 0.4 + 6.1 = | 5.3 - 3.2 = | 6.3 + 1.5 = |
| 3.5 - 0.7 = | 2.9 + 3.4 = | 1.3 + 5.6 = | 9.1 - 1.2 = |
| 1.8 + 0.3 = | 2.8 - 2.0 = | 5.9 - 0.1 = | 3.2 + 0.3 = |
| 9.2 - 1.1 = | 9.3 + 0.1 = | 1.9 - 0.8 = | 5.9 - 2.7 = |
| 4.7 - 2.4 = | 5.7 + 1.0 = | 5.9 + 3.4 = | 3.9 - 1.9 = |
| 7.8 - 7.6 = | 5.5 + 4.3 = | 7.5 + 2.0 = | 0.6 + 6.2 = |
| 5.8 - 2.6 = | 9.3 + 0.4 = | 7.8 - 3.9 = | 9.5 - 0.5 = |
| 5.2 + 2.4 = | 5.4 + 0.9 = | 2.9 + 0.4 = | 4.0 + 3.9 = |
| 5.5 + 2.7 = | 3.3 + 3.5 = | 3.1 + 1.6 = | 9.4 - 4.5 = |
| 5.6 + 2.4 = | 8.0 + 1.6 = | 3.2 - 0.7 = | 9.4 + 0.3 = |
| 2.0 - 1.5 = | 4.5 - 2.5 = | 5.6 + 2.2 = | 7.8 + 0.9 = |
| 8.5 + 0.7 = | 3.2 + 5.0 = | 7.8 - 2.5 = | 6.1 + 1.0 = |
| 7.2 - 3.8 = | 9.4 + 0.1 = | 4.5 - 0.8 = | 3.2 + 0.7 = |
| 4.8 + 1.5 = | 9.0 - 1.9 = | 0.8 + 4.5 = | 0.7 - 0.7 = |
| 0.4 + 7.8 = | 3.6 - 2.8 = | 2.6 + 4.5 = | 5.9 + 2.3 = |
| 0.7 + 6.3 = | 9.0 - 8.2 = | 3.9 + 4.0 = | 8.3 - 4.0 = |
| 4.5 + 0.3 = | 1.9 + 5.9 = | 9.6 + 0.1 = | 9.9 + 0.1 = |
| 7.0 - 4.0 = | 5.0 - 1.9 = | 6.2 - 4.4 = | 8.8 - 7.6 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 4.7 + 0.3 = 5 | 5.5 - 0.6 = 4.9 | 3.9 + 5.5 = 9.4 | 2.3 + 1.0 = 3.3 |
| 1.2 - 0.4 = 0.8 | 9.1 - 1.6 = 7.5 | 1.0 + 8.1 = 9.1 | 7.1 + 0.2 = 7.3 |
| 8.7 - 2.9 = 5.8 | 4.6 + 3.6 = 8.2 | 7.6 + 2.2 = 9.8 | 2.8 + 1.7 = 4.5 |
| 8.6 - 0.7 = 7.9 | 1.5 - 0.6 = 0.9 | 3.1 + 5.3 = 8.4 | 2.2 + 4.3 = 6.5 |
| 1.6 + 6.3 = 7.9 | 0.9 + 6.5 = 7.4 | 5.0 + 0.6 = 5.6 | 4.3 - 1.2 = 3.1 |
| 7.5 - 2.0 = 5.5 | 8.9 + 0.8 = 9.7 | 0.4 - 0.3 = 0.1 | 4.2 + 5.5 = 9.7 |
| 3.5 + 6.1 = 9.6 | 0.6 + 1.9 = 2.5 | 6.4 - 6.3 = 0.1 | 0.9 + 1.9 = 2.8 |
| 6.8 + 1.4 = 8.2 | 0.4 + 6.1 = 6.5 | 5.3 - 3.2 = 2.1 | 6.3 + 1.5 = 7.8 |
| 3.5 - 0.7 = 2.8 | 2.9 + 3.4 = 6.3 | 1.3 + 5.6 = 6.9 | 9.1 - 1.2 = 7.9 |
| 1.8 + 0.3 = 2.1 | 2.8 - 2.0 = 0.8 | 5.9 - 0.1 = 5.8 | 3.2 + 0.3 = 3.5 |
| 9.2 - 1.1 = 8.1 | 9.3 + 0.1 = 9.4 | 1.9 - 0.8 = 1.1 | 5.9 - 2.7 = 3.2 |
| 4.7 - 2.4 = 2.3 | 5.7 + 1.0 = 6.7 | 5.9 + 3.4 = 9.3 | 3.9 - 1.9 = 2 |
| 7.8 - 7.6 = 0.2 | 5.5 + 4.3 = 9.8 | 7.5 + 2.0 = 9.5 | 0.6 + 6.2 = 6.8 |
| 5.8 - 2.6 = 3.2 | 9.3 + 0.4 = 9.7 | 7.8 - 3.9 = 3.9 | 9.5 - 0.5 = 9 |
| 5.2 + 2.4 = 7.6 | 5.4 + 0.9 = 6.3 | 2.9 + 0.4 = 3.3 | 4.0 + 3.9 = 7.9 |
| 5.5 + 2.7 = 8.2 | 3.3 + 3.5 = 6.8 | 3.1 + 1.6 = 4.7 | 9.4 - 4.5 = 4.9 |
| 5.6 + 2.4 = 8 | 8.0 + 1.6 = 9.6 | 3.2 - 0.7 = 2.5 | 9.4 + 0.3 = 9.7 |
| 2.0 - 1.5 = 0.5 | 4.5 - 2.5 = 2 | 5.6 + 2.2 = 7.8 | 7.8 + 0.9 = 8.7 |
| 8.5 + 0.7 = 9.2 | 3.2 + 5.0 = 8.2 | 7.8 - 2.5 = 5.3 | 6.1 + 1.0 = 7.1 |
| 7.2 - 3.8 = 3.4 | 9.4 + 0.1 = 9.5 | 4.5 - 0.8 = 3.7 | 3.2 + 0.7 = 3.9 |
| 4.8 + 1.5 = 6.3 | 9.0 - 1.9 = 7.1 | 0.8 + 4.5 = 5.3 | 0.7 - 0.7 = 0 |
| 0.4 + 7.8 = 8.2 | 3.6 - 2.8 = 0.8 | 2.6 + 4.5 = 7.1 | 5.9 + 2.3 = 8.2 |
| 0.7 + 6.3 = 7 | 9.0 - 8.2 = 0.8 | 3.9 + 4.0 = 7.9 | 8.3 - 4.0 = 4.3 |
| 4.5 + 0.3 = 4.8 | 1.9 + 5.9 = 7.8 | 9.6 + 0.1 = 9.7 | 9.9 + 0.1 = 10 |
| 7.0 - 4.0 = 3 | 5.0 - 1.9 = 3.1 | 6.2 - 4.4 = 1.8 | 8.8 - 7.6 = 1.2 |