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