三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 2.8 + 1.5 = | 9.0 - 1.0 = | 2.3 - 1.2 = | 4.9 + 0.7 = |
| 3.6 + 2.3 = | 0.3 + 3.8 = | 3.2 + 4.8 = | 6.7 + 3.2 = |
| 9.7 - 9.1 = | 3.1 - 1.4 = | 7.7 - 6.0 = | 7.1 - 5.8 = |
| 9.1 - 5.6 = | 1.7 + 7.8 = | 6.5 + 3.2 = | 9.7 + 0.2 = |
| 5.7 + 2.0 = | 3.7 - 2.8 = | 6.1 + 1.2 = | 0.6 + 7.8 = |
| 0.1 + 0.3 = | 0.6 + 0.4 = | 2.5 - 0.9 = | 3.8 + 5.7 = |
| 6.4 - 3.8 = | 10.0 - 8.4 = | 4.7 - 2.8 = | 5.3 - 2.7 = |
| 1.4 + 8.5 = | 5.7 - 2.8 = | 7.1 + 2.0 = | 5.0 + 5.0 = |
| 5.1 - 1.3 = | 4.9 - 3.5 = | 5.5 + 4.0 = | 1.1 - 0.6 = |
| 1.7 + 3.4 = | 5.5 - 1.0 = | 7.9 - 3.2 = | 8.9 + 0.5 = |
| 1.3 - 0.6 = | 4.9 + 1.4 = | 0.5 - 0.5 = | 7.5 - 4.6 = |
| 3.9 - 3.8 = | 5.4 + 2.7 = | 0.6 - 0.4 = | 7.7 + 0.4 = |
| 1.8 - 0.2 = | 1.3 + 1.8 = | 9.5 + 0.4 = | 9.6 - 7.2 = |
| 4.2 - 1.1 = | 7.7 + 1.2 = | 6.8 + 1.1 = | 9.9 - 2.8 = |
| 2.8 - 0.3 = | 9.0 + 0.3 = | 8.7 - 4.9 = | 5.0 + 4.2 = |
| 6.5 + 0.8 = | 1.2 + 4.3 = | 5.3 - 4.7 = | 2.3 + 6.9 = |
| 1.2 - 0.6 = | 2.5 + 3.0 = | 7.1 - 4.7 = | 1.0 + 7.1 = |
| 5.7 + 2.3 = | 5.9 + 1.3 = | 1.3 - 0.9 = | 9.2 - 1.7 = |
| 0.5 + 5.0 = | 4.5 + 2.5 = | 2.3 + 0.3 = | 3.8 + 0.2 = |
| 6.1 - 5.0 = | 9.9 - 9.4 = | 9.5 + 0.2 = | 4.6 + 5.4 = |
| 7.3 - 6.8 = | 0.6 - 0.3 = | 4.6 - 2.0 = | 7.9 - 6.0 = |
| 1.8 + 3.8 = | 8.0 + 1.5 = | 9.6 - 8.8 = | 3.6 - 3.2 = |
| 6.2 - 1.3 = | 2.0 - 0.6 = | 3.4 + 3.0 = | 3.0 - 1.4 = |
| 4.7 + 2.0 = | 3.5 - 2.8 = | 8.4 - 0.2 = | 7.1 - 1.1 = |
| 3.1 - 1.2 = | 7.7 + 1.6 = | 3.2 + 5.0 = | 5.6 + 3.8 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 2.8 + 1.5 = 4.3 | 9.0 - 1.0 = 8 | 2.3 - 1.2 = 1.1 | 4.9 + 0.7 = 5.6 |
| 3.6 + 2.3 = 5.9 | 0.3 + 3.8 = 4.1 | 3.2 + 4.8 = 8 | 6.7 + 3.2 = 9.9 |
| 9.7 - 9.1 = 0.6 | 3.1 - 1.4 = 1.7 | 7.7 - 6.0 = 1.7 | 7.1 - 5.8 = 1.3 |
| 9.1 - 5.6 = 3.5 | 1.7 + 7.8 = 9.5 | 6.5 + 3.2 = 9.7 | 9.7 + 0.2 = 9.9 |
| 5.7 + 2.0 = 7.7 | 3.7 - 2.8 = 0.9 | 6.1 + 1.2 = 7.3 | 0.6 + 7.8 = 8.4 |
| 0.1 + 0.3 = 0.4 | 0.6 + 0.4 = 1 | 2.5 - 0.9 = 1.6 | 3.8 + 5.7 = 9.5 |
| 6.4 - 3.8 = 2.6 | 10.0 - 8.4 = 1.6 | 4.7 - 2.8 = 1.9 | 5.3 - 2.7 = 2.6 |
| 1.4 + 8.5 = 9.9 | 5.7 - 2.8 = 2.9 | 7.1 + 2.0 = 9.1 | 5.0 + 5.0 = 10 |
| 5.1 - 1.3 = 3.8 | 4.9 - 3.5 = 1.4 | 5.5 + 4.0 = 9.5 | 1.1 - 0.6 = 0.5 |
| 1.7 + 3.4 = 5.1 | 5.5 - 1.0 = 4.5 | 7.9 - 3.2 = 4.7 | 8.9 + 0.5 = 9.4 |
| 1.3 - 0.6 = 0.7 | 4.9 + 1.4 = 6.3 | 0.5 - 0.5 = 0 | 7.5 - 4.6 = 2.9 |
| 3.9 - 3.8 = 0.1 | 5.4 + 2.7 = 8.1 | 0.6 - 0.4 = 0.2 | 7.7 + 0.4 = 8.1 |
| 1.8 - 0.2 = 1.6 | 1.3 + 1.8 = 3.1 | 9.5 + 0.4 = 9.9 | 9.6 - 7.2 = 2.4 |
| 4.2 - 1.1 = 3.1 | 7.7 + 1.2 = 8.9 | 6.8 + 1.1 = 7.9 | 9.9 - 2.8 = 7.1 |
| 2.8 - 0.3 = 2.5 | 9.0 + 0.3 = 9.3 | 8.7 - 4.9 = 3.8 | 5.0 + 4.2 = 9.2 |
| 6.5 + 0.8 = 7.3 | 1.2 + 4.3 = 5.5 | 5.3 - 4.7 = 0.6 | 2.3 + 6.9 = 9.2 |
| 1.2 - 0.6 = 0.6 | 2.5 + 3.0 = 5.5 | 7.1 - 4.7 = 2.4 | 1.0 + 7.1 = 8.1 |
| 5.7 + 2.3 = 8 | 5.9 + 1.3 = 7.2 | 1.3 - 0.9 = 0.4 | 9.2 - 1.7 = 7.5 |
| 0.5 + 5.0 = 5.5 | 4.5 + 2.5 = 7 | 2.3 + 0.3 = 2.6 | 3.8 + 0.2 = 4 |
| 6.1 - 5.0 = 1.1 | 9.9 - 9.4 = 0.5 | 9.5 + 0.2 = 9.7 | 4.6 + 5.4 = 10 |
| 7.3 - 6.8 = 0.5 | 0.6 - 0.3 = 0.3 | 4.6 - 2.0 = 2.6 | 7.9 - 6.0 = 1.9 |
| 1.8 + 3.8 = 5.6 | 8.0 + 1.5 = 9.5 | 9.6 - 8.8 = 0.8 | 3.6 - 3.2 = 0.4 |
| 6.2 - 1.3 = 4.9 | 2.0 - 0.6 = 1.4 | 3.4 + 3.0 = 6.4 | 3.0 - 1.4 = 1.6 |
| 4.7 + 2.0 = 6.7 | 3.5 - 2.8 = 0.7 | 8.4 - 0.2 = 8.2 | 7.1 - 1.1 = 6 |
| 3.1 - 1.2 = 1.9 | 7.7 + 1.6 = 9.3 | 3.2 + 5.0 = 8.2 | 5.6 + 3.8 = 9.4 |