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