speed-grid/addition-5x5/easy · 套题 7
2 problems
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1
4×4 addition speed grid. Row: [5, 10, 7, 8] × Col: [9, 3, 6, 8]
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2
4×4 addition speed grid. Row: [1, 6, 8, 9] × Col: [1, 2, 7, 5]
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