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