三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 1.0 + 4.4 = | 8.2 - 5.8 = | 1.5 + 8.3 = | 7.1 + 0.7 = |
| 4.5 - 4.5 = | 4.9 - 2.2 = | 8.8 - 2.6 = | 4.9 - 1.4 = |
| 0.2 + 1.7 = | 8.2 + 1.0 = | 9.3 + 0.2 = | 8.8 + 0.5 = |
| 0.4 - 0.2 = | 7.9 + 1.9 = | 7.0 - 0.9 = | 3.0 + 6.7 = |
| 5.0 - 2.0 = | 5.6 - 2.5 = | 7.7 - 1.5 = | 4.3 - 3.5 = |
| 1.8 - 1.2 = | 9.3 + 0.6 = | 7.5 - 0.6 = | 4.2 + 5.1 = |
| 7.9 + 2.0 = | 1.6 - 1.1 = | 4.6 - 0.8 = | 3.6 + 4.9 = |
| 1.6 - 1.3 = | 1.8 - 1.3 = | 2.0 - 0.2 = | 8.5 - 6.7 = |
| 0.5 + 3.5 = | 6.8 + 2.8 = | 7.6 + 1.6 = | 1.4 + 1.0 = |
| 8.7 + 0.4 = | 8.1 - 6.2 = | 5.4 - 3.0 = | 1.0 + 0.3 = |
| 7.3 + 0.9 = | 1.4 + 0.2 = | 3.7 + 1.1 = | 5.6 + 2.7 = |
| 5.7 - 1.9 = | 3.2 - 1.8 = | 8.2 + 1.2 = | 3.8 + 4.1 = |
| 0.7 + 1.7 = | 0.7 - 0.4 = | 7.9 + 1.7 = | 5.5 + 3.5 = |
| 9.0 + 0.2 = | 8.2 + 1.3 = | 9.6 + 0.2 = | 1.8 - 1.8 = |
| 6.5 - 4.4 = | 1.0 - 0.8 = | 5.8 - 1.3 = | 2.7 - 1.6 = |
| 0.8 - 0.6 = | 2.0 + 6.6 = | 9.4 + 0.2 = | 8.2 + 0.5 = |
| 3.5 + 3.4 = | 3.3 - 2.0 = | 1.9 - 1.2 = | 9.1 + 0.2 = |
| 6.5 + 1.7 = | 0.2 + 2.1 = | 9.0 + 0.7 = | 6.8 + 1.9 = |
| 0.4 + 1.7 = | 6.9 + 0.6 = | 7.9 + 1.7 = | 0.8 + 0.2 = |
| 5.8 + 1.2 = | 9.4 + 0.3 = | 2.9 + 3.5 = | 6.0 + 0.5 = |
| 3.3 - 1.7 = | 0.7 + 4.2 = | 9.1 - 7.8 = | 2.5 + 5.0 = |
| 8.8 - 3.5 = | 0.9 - 0.3 = | 9.6 - 9.3 = | 6.4 + 1.9 = |
| 1.6 - 1.1 = | 5.4 + 2.2 = | 7.3 - 4.4 = | 9.8 - 7.5 = |
| 3.8 + 2.8 = | 2.0 - 0.6 = | 9.7 + 0.2 = | 1.6 - 1.5 = |
| 2.5 - 2.4 = | 6.8 + 1.8 = | 5.3 - 4.5 = | 6.8 + 3.2 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 1.0 + 4.4 = 5.4 | 8.2 - 5.8 = 2.4 | 1.5 + 8.3 = 9.8 | 7.1 + 0.7 = 7.8 |
| 4.5 - 4.5 = 0 | 4.9 - 2.2 = 2.7 | 8.8 - 2.6 = 6.2 | 4.9 - 1.4 = 3.5 |
| 0.2 + 1.7 = 1.9 | 8.2 + 1.0 = 9.2 | 9.3 + 0.2 = 9.5 | 8.8 + 0.5 = 9.3 |
| 0.4 - 0.2 = 0.2 | 7.9 + 1.9 = 9.8 | 7.0 - 0.9 = 6.1 | 3.0 + 6.7 = 9.7 |
| 5.0 - 2.0 = 3 | 5.6 - 2.5 = 3.1 | 7.7 - 1.5 = 6.2 | 4.3 - 3.5 = 0.8 |
| 1.8 - 1.2 = 0.6 | 9.3 + 0.6 = 9.9 | 7.5 - 0.6 = 6.9 | 4.2 + 5.1 = 9.3 |
| 7.9 + 2.0 = 9.9 | 1.6 - 1.1 = 0.5 | 4.6 - 0.8 = 3.8 | 3.6 + 4.9 = 8.5 |
| 1.6 - 1.3 = 0.3 | 1.8 - 1.3 = 0.5 | 2.0 - 0.2 = 1.8 | 8.5 - 6.7 = 1.8 |
| 0.5 + 3.5 = 4 | 6.8 + 2.8 = 9.6 | 7.6 + 1.6 = 9.2 | 1.4 + 1.0 = 2.4 |
| 8.7 + 0.4 = 9.1 | 8.1 - 6.2 = 1.9 | 5.4 - 3.0 = 2.4 | 1.0 + 0.3 = 1.3 |
| 7.3 + 0.9 = 8.2 | 1.4 + 0.2 = 1.6 | 3.7 + 1.1 = 4.8 | 5.6 + 2.7 = 8.3 |
| 5.7 - 1.9 = 3.8 | 3.2 - 1.8 = 1.4 | 8.2 + 1.2 = 9.4 | 3.8 + 4.1 = 7.9 |
| 0.7 + 1.7 = 2.4 | 0.7 - 0.4 = 0.3 | 7.9 + 1.7 = 9.6 | 5.5 + 3.5 = 9 |
| 9.0 + 0.2 = 9.2 | 8.2 + 1.3 = 9.5 | 9.6 + 0.2 = 9.8 | 1.8 - 1.8 = 0 |
| 6.5 - 4.4 = 2.1 | 1.0 - 0.8 = 0.2 | 5.8 - 1.3 = 4.5 | 2.7 - 1.6 = 1.1 |
| 0.8 - 0.6 = 0.2 | 2.0 + 6.6 = 8.6 | 9.4 + 0.2 = 9.6 | 8.2 + 0.5 = 8.7 |
| 3.5 + 3.4 = 6.9 | 3.3 - 2.0 = 1.3 | 1.9 - 1.2 = 0.7 | 9.1 + 0.2 = 9.3 |
| 6.5 + 1.7 = 8.2 | 0.2 + 2.1 = 2.3 | 9.0 + 0.7 = 9.7 | 6.8 + 1.9 = 8.7 |
| 0.4 + 1.7 = 2.1 | 6.9 + 0.6 = 7.5 | 7.9 + 1.7 = 9.6 | 0.8 + 0.2 = 1 |
| 5.8 + 1.2 = 7 | 9.4 + 0.3 = 9.7 | 2.9 + 3.5 = 6.4 | 6.0 + 0.5 = 6.5 |
| 3.3 - 1.7 = 1.6 | 0.7 + 4.2 = 4.9 | 9.1 - 7.8 = 1.3 | 2.5 + 5.0 = 7.5 |
| 8.8 - 3.5 = 5.3 | 0.9 - 0.3 = 0.6 | 9.6 - 9.3 = 0.3 | 6.4 + 1.9 = 8.3 |
| 1.6 - 1.1 = 0.5 | 5.4 + 2.2 = 7.6 | 7.3 - 4.4 = 2.9 | 9.8 - 7.5 = 2.3 |
| 3.8 + 2.8 = 6.6 | 2.0 - 0.6 = 1.4 | 9.7 + 0.2 = 9.9 | 1.6 - 1.5 = 0.1 |
| 2.5 - 2.4 = 0.1 | 6.8 + 1.8 = 8.6 | 5.3 - 4.5 = 0.8 | 6.8 + 3.2 = 10 |