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: 710×60
    Solution:
    710×60 = 42600
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 230×60
    Solution:
    230×60 = 13800
    Column vertical calculation:

							2	3	0
✖								6	0
							0	0	0
					1	3	8	0
					1	3	8	0	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1400÷140
    Solution:
    1400÷140 = 10
    Column vertical calculation:

						1	0
1	4	0	丿	1	4	0	0
				1	4	0
						0	0
							0
							0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 800×20
    Solution:
    800×20 = 16000
    Column vertical calculation:

							8	0	0
✖								2	0
							0	0	0
					1	6	0	0
					1	6	0	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 244×20
    Solution:
    244×20 = 4880
    Column vertical calculation:

							2	4	4
✖								2	0
							0	0	0
						4	8	8
						4	8	8	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 7500÷150
    Solution:
    7500÷150 = 50
    Column vertical calculation:

						5	0
1	5	0	丿	7	5	0	0
				7	5	0
						0	0
							0
							0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 105×60
    Solution:
    105×60 = 6300
    Column vertical calculation:

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

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>>注：本次最多计算 7 道题。

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