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: 71×60
    Solution:
    71×60 = 4260
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 230×6
    Solution:
    230×6 = 1380
    Column vertical calculation:

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

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 140÷14
    Solution:
    140÷14 = 10
    Column vertical calculation:

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

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 62×50
    Solution:
    62×50 = 3100
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 211×5
    Solution:
    211×5 = 1055
    Column vertical calculation:

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

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 180÷12
    Solution:
    180÷12 = 15
    Column vertical calculation:

				1	5
1	2	丿	1	8	0
			1	2
				6	0
				6	0
					0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 11×200
    Solution:
    11×200 = 2200
    Column vertical calculation:

								1	1
✖							2	0	0
								0	0
							0	0
						2	2
						2	2	0	0

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>>注：本次最多计算 7 道题。

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