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