加法
| [0] | (+15) ＋ (+16) | = | |
| [1] | (+11) ＋ (-10) | = | |
| [2] | (-7) ＋ (-15) | = | |
| [3] | (+19) ＋ (+16) | = | |
| [4] | (-16) ＋ (-8) | = | |
| [5] | (-18) ＋ (+15) | = | |
| [6] | (+18) ＋ (-7) | = | |
| [7] | (+13) ＋ (+10) | = | |
| [8] | (+16) ＋ (-6) | = | |
| [9] | (+6) ＋ (+16) | = |
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