| 2 |
| 5 |
| 3 |
| 7 |
| 1 |
| 4 |
| 1 |
| 1×3 |
| 1 |
| 3×5 |
| 1 |
| 5×7 |
| 1 |
| 17×19 |
| 1 |
| 19×21 |
| 2 |
| 5 |
| 3 |
| 7 |
| 2 |
| 5 |
| 3 |
| 7 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 3 |
| 7 |
| 3 |
| 7 |
| 4 |
| 7 |
| 1 |
| 4 |
| 1 |
| 1×3 |
| 1 |
| 3×5 |
| 1 |
| 5×7 |
| 1 |
| 17×19 |
| 1 |
| 19×21 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 5 |
| 1 |
| 2 |
| 1 |
| 17 |
| 1 |
| 19 |
| 1 |
| 2 |
| 1 |
| 19 |
| 1 |
| 21 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 5 |
| 1 |
| 17 |
| 1 |
| 19 |
| 1 |
| 19 |
| 1 |
| 21 |
| 1 |
| 2 |
| 1 |
| 21 |
| 1 |
| 2 |
| 20 |
| 21 |
| 10 |
| 21 |
科目:小学数学 来源:不详 题型:解答题
| 脱式计算 2-
| 1-
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| ||||||||||||||
| 117.4-17.4÷0.4 | 8.4+1.6÷0.4×2.5 | (
|
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科目:小学数学 来源:不详 题型:解答题
| 5 |
| 8 |
| 1 |
| 2 |
| 9 |
| 10 |
| 9 |
| 10 |
| 9 |
| 10 |
| 9 |
| 10 |
| 3 |
| 7 |
| 3 |
| 8 |
| 3 |
| 5 |
| 1 |
| 2 |
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科目:小学数学 来源:不详 题型:解答题
| 脱式计算(能简便的要简便) (11-
| (84÷4-0.01)×(1-
| ||||||||||||||
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| ||||||||||||||
|
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