speed-grid/multiplication-4x4/easy · Sada 5

2 problems
1
4×4 addition speed grid. Row: [9, 1, 5, 6] × Col: [7, 10, 1, 8] =
2
4×4 addition speed grid. Row: [9, 2, 4, 7] × Col: [10, 3, 7, 1] =
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