減法
| [0] | (-9) − (+10) | = | |
| [1] | (-6) − (+14) | = | |
| [2] | (-12) − (+14) | = | |
| [3] | (-15) − (+11) | = | |
| [4] | (+10) − (+12) | = | |
| [5] | (-16) − (+10) | = | |
| [6] | (-13) − (+17) | = | |
| [7] | (+18) − (+8) | = | |
| [8] | (+17) − (-11) | = | |
| [9] | (-12) − (+11) | = |
加法 減法 乗法 混合
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