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