speed-grid/addition-4x4/medium · Sarja 3
2 problems
Nimi:
Luokka:
Päivämäärä:
1
4×4 addition speed grid. Row: [2, 9, 5, 6] × Col: [7, 4, 1, 3]
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2
4×4 addition speed grid. Row: [4, 5, 10, 1] × Col: [5, 8, 2, 7]
=