Medium · Set 2
2 problems
Name:
Class:
Date:
1
4×4 addition speed grid. Row: [10, 9, 4, 1] × Col: [2, 5, 10, 1]
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2
4×4 addition speed grid. Row: [7, 3, 6, 5] × Col: [10, 6, 9, 8]
=