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