加法
| [0] | (+18) ＋ (-10) | = | |
| [1] | (-13) ＋ (-16) | = | |
| [2] | (-16) ＋ (+18) | = | |
| [3] | (-9) ＋ (-9) | = | |
| [4] | (+14) ＋ (+10) | = | |
| [5] | (+11) ＋ (+16) | = | |
| [6] | (+19) ＋ (+8) | = | |
| [7] | (+10) ＋ (+7) | = | |
| [8] | (+10) ＋ (+17) | = | |
| [9] | (-7) ＋ (+6) | = |
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