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