speed-grid/addition-5x5/easy · 세트 4
2 problems
이름:
학급:
날짜:
1
4×4 addition speed grid. Row: [3, 8, 5, 1] × Col: [9, 7, 5, 6]
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2
4×4 addition speed grid. Row: [8, 7, 9, 1] × Col: [8, 10, 5, 4]
=