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: 268×400
    Solution:
    268×400 = 107200
    Column vertical calculation:

								2	6	8
✖								4	0	0
								0	0	0
							0	0	0
					1	0	7	2
					1	0	7	2	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 2064×50
    Solution:
    2064×50 = 103200
    Column vertical calculation:

							2	0	6	4
✖									5	0
							0	0	0	0
					1	0	3	2	0
					1	0	3	2	0	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 720÷360
    Solution:
    720÷360 = 2
    Column vertical calculation:

						2
3	6	0	丿	7	2	0
				7	2	0
						0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 908×900
    Solution:
    908×900 = 817200
    Column vertical calculation:

								9	0	8
✖								9	0	0
								0	0	0
							0	0	0
					8	1	7	2
					8	1	7	2	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 9002×60
    Solution:
    9002×60 = 540120
    Column vertical calculation:

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

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 960÷240
    Solution:
    960÷240 = 4
    Column vertical calculation:

						4
2	4	0	丿	9	6	0
				9	6	0
						0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 986×400
    Solution:
    986×400 = 394400
    Column vertical calculation:

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

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>>注：本次最多计算 7 道题。

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