Speed Grid Multiplication 4x4 Medium · Set 8
2 problems
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1
4×4 addition speed grid. Row: [3, 6, 7, 9] × Col: [1, 9, 7, 3]
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2
4×4 addition speed grid. Row: [1, 5, 2, 8] × Col: [9, 2, 4, 7]
=