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