speed-grid/addition-5x5/hard · 세트 8
2 problems
이름:
학급:
날짜:
1
4×4 addition speed grid. Row: [4, 5, 1, 8] × Col: [3, 1, 6, 4]
=
2
4×4 addition speed grid. Row: [9, 4, 2, 5] × Col: [7, 9, 2, 3]
=