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