Overview: 1 questions will be solved this time.Among them
           ☆1 integer calculations

[1/1 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 16*16
    Solution:
    16*16 = 256
    Column vertical calculation:

							1	6
✖							1	6
							9	6
						1	6
						2	5	6

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