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