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: 1080×800
    Solution:
    1080×800 = 864000
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 2334×90
    Solution:
    2334×90 = 210060
    Column vertical calculation:

							2	3	3	4
✖									9	0
							0	0	0	0
					2	1	0	0	6
					2	1	0	0	6	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1890÷630
    Solution:
    1890÷630 = 3
    Column vertical calculation:

							3
6	3	0	丿	1	8	9	0
				1	8	9	0
							0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 7900×300
    Solution:
    7900×300 = 2370000
    Column vertical calculation:

								7	9	0	0
✖									3	0	0
								0	0	0	0
							0	0	0	0
					2	3	7	0	0
					2	3	7	0	0	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 9322×80
    Solution:
    9322×80 = 745760
    Column vertical calculation:

							9	3	2	2
✖									8	0
							0	0	0	0
					7	4	5	7	6
					7	4	5	7	6	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 4800÷320
    Solution:
    4800÷320 = 15
    Column vertical calculation:

						1	5
3	2	0	丿	4	8	0	0
				3	2	0
				1	6	0	0
				1	6	0	0
							0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 841×500
    Solution:
    841×500 = 420500
    Column vertical calculation:

								8	4	1
✖								5	0	0
								0	0	0
							0	0	0
					4	2	0	5
					4	2	0	5	0	0

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>>注：本次最多计算 7 道题。

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