Speed Grid Multiplication 4x4 Medium · Set 9
2 problems
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1
4×4 addition speed grid. Row: [1, 5, 9, 2] × Col: [6, 7, 1, 4]
=
2
4×4 addition speed grid. Row: [1, 9, 10, 3] × Col: [2, 1, 9, 7]
=