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: 216×900
    Solution:
    216×900 = 194400
    Column vertical calculation:

								2	1	6
✖								9	0	0
								0	0	0
							0	0	0
					1	9	4	4
					1	9	4	4	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 2012×50
    Solution:
    2012×50 = 100600
    Column vertical calculation:

							2	0	1	2
✖									5	0
							0	0	0	0
					1	0	0	6	0
					1	0	0	6	0	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 700÷350
    Solution:
    700÷350 = 2
    Column vertical calculation:

						2
3	5	0	丿	7	0	0
				7	0	0
						0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 644×600
    Solution:
    644×600 = 386400
    Column vertical calculation:

								6	4	4
✖								6	0	0
								0	0	0
							0	0	0
					3	8	6	4
					3	8	6	4	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 6038×30
    Solution:
    6038×30 = 181140
    Column vertical calculation:

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

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 4800÷600
    Solution:
    4800÷600 = 8
    Column vertical calculation:

							8
6	0	0	丿	4	8	0	0
				4	8	0	0
							0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 564×400
    Solution:
    564×400 = 225600
    Column vertical calculation:

								5	6	4
✖								4	0	0
								0	0	0
							0	0	0
					2	2	5	6
					2	2	5	6	0	0

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>>注：本次最多计算 7 道题。

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