Overview: 7 questions will be solved this time.Among them
           ☆7 integer calculations

[1/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 509×400
    Solution:
    509×400 = 203600
    Column vertical calculation:

								5	0	9
✖								4	0	0
								0	0	0
							0	0	0
					2	0	3	6
					2	0	3	6	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 4096×40
    Solution:
    4096×40 = 163840
    Column vertical calculation:

							4	0	9	6
✖									4	0
							0	0	0	0
					1	6	3	8	4
					1	6	3	8	4	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 8000÷500
    Solution:
    8000÷500 = 16
    Column vertical calculation:

						1	6
5	0	0	丿	8	0	0	0
				5	0	0
				3	0	0	0
				3	0	0	0
							0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 512×900
    Solution:
    512×900 = 460800
    Column vertical calculation:

								5	1	2
✖								9	0	0
								0	0	0
							0	0	0
					4	6	0	8
					4	6	0	8	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 5001×60
    Solution:
    5001×60 = 300060
    Column vertical calculation:

							5	0	0	1
✖									6	0
							0	0	0	0
					3	0	0	0	6
					3	0	0	0	6	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1080÷540
    Solution:
    1080÷540 = 2
    Column vertical calculation:

							2
5	4	0	丿	1	0	8	0
				1	0	8	0
							0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 632×700
    Solution:
    632×700 = 442400
    Column vertical calculation:

								6	3	2
✖								7	0	0
								0	0	0
							0	0	0
					4	4	2	4
					4	4	2	4	0	0

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>>注：本次最多计算 7 道题。

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