speed-grid/addition-5x5/expert · Série 8
2 problems
Nom:
Classe:
Date:
1
4×4 addition speed grid. Row: [10, 8, 7, 5] × Col: [3, 8, 7, 6]
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2
4×4 addition speed grid. Row: [6, 4, 8, 2] × Col: [7, 2, 9, 6]
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