speed-grid/division-5x5/easy · セット 8
2 problems
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クラス:
日付：
1
4×4 addition speed grid. Row: [6, 1, 10, 9] × Col: [8, 2, 4, 1]
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2
4×4 addition speed grid. Row: [1, 4, 10, 8] × Col: [7, 8, 5, 10]
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