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