科目: 來源:不詳 題型:解答題
| 1 |
| 2 |
| 1 |
| 1×2 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2×3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 12 |
| 1 |
| 3×4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 20 |
| 1 |
| 4×5 |
| 1 |
| n(n+1) |
| 1 |
| 1×2 |
| 1 |
| 2×3 |
| 1 |
| 3×4 |
| 1 |
| n(n+1) |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| n |
| 1 |
| n+1 |
| n |
| n+1 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 20 |
| 1 |
| 30 |
| 1 |
| 42 |
| 1 |
| 56 |
| 1 |
| 72 |
| 1 |
| 90 |
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科目: 來源:不詳 題型:解答題
12×(
|
| 6÷(1-
| ||||||||||||||||||||
| 19-
|
|
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科目: 來源:不詳 題型:解答題
| 計算(能簡算的要簡算). (1)(
| (2)
| (3)
| ||||||||||||||||
(4)
| (5)[1-(
| (6)(
|
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科目: 來源:不詳 題型:解答題
| 1 |
| 2 |
| 1 |
| 4 |
| 2 |
| 5 |
| 2 |
| 9 |
| 1 |
| 4 |
| 3 |
| 4 |
| 7 |
| 9 |
| 1 |
| 3 |
| 3 |
| 4 |
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 20 |
| 1 |
| 30 |
| 1 |
| 42 |
| 4 |
| 7 |
| 1 |
| 3 |
| 4 |
| 7 |
| 7 |
| 25 |
| 1 |
| 21 |
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