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