speed-grid/addition-4x4/medium · 세트 2
2 problems
이름:
학급:
날짜:
1
4×4 addition speed grid. Row: [9, 7, 2, 10] × Col: [3, 8, 9, 5]
=
2
4×4 addition speed grid. Row: [6, 9, 1, 7] × Col: [9, 4, 6, 10]
=