speed-grid/addition-5x5/medium · סט 4

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