speed-grid/addition-5x5/expert · 套题 2
2 problems
姓名:
班级:
日期:
1
4×4 addition speed grid. Row: [5, 6, 4, 7] × Col: [6, 2, 10, 9]
=
2
4×4 addition speed grid. Row: [10, 2, 7, 6] × Col: [1, 10, 8, 7]
=