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: 459×500
    Solution:
    459×500 = 229500
    Column vertical calculation:

								4	5	9
✖								5	0	0
								0	0	0
							0	0	0
					2	2	9	5
					2	2	9	5	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 4042×50
    Solution:
    4042×50 = 202100
    Column vertical calculation:

							4	0	4	2
✖									5	0
							0	0	0	0
					2	0	2	1	0
					2	0	2	1	0	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 5760÷480
    Solution:
    5760÷480 = 12
    Column vertical calculation:

						1	2
4	8	0	丿	5	7	6	0
				4	8	0
					9	6	0
					9	6	0
							0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 461×400
    Solution:
    461×400 = 184400
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 4056×40
    Solution:
    4056×40 = 162240
    Column vertical calculation:

							4	0	5	6
✖									4	0
							0	0	0	0
					1	6	2	2	4
					1	6	2	2	4	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1000÷500
    Solution:
    1000÷500 = 2
    Column vertical calculation:

							2
5	0	0	丿	1	0	0	0
				1	0	0	0
							0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 1010×900
    Solution:
    1010×900 = 909000
    Column vertical calculation:

								1	0	1	0
✖									9	0	0
								0	0	0	0
							0	0	0	0
						9	0	9	0
						9	0	9	0	0	0

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>>注：本次最多计算 7 道题。

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