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: 32×50
    Solution:
    32×50 = 1600
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 151×5
    Solution:
    151×5 = 755
    Column vertical calculation:

						1	5	1
✖								5
						7	5	5
						7	5	5

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 150÷6
    Solution:
    150÷6 = 25
    Column vertical calculation:

			2	5
6	丿	1	5	0
		1	2
			3	0
			3	0
				0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 42×50
    Solution:
    42×50 = 2100
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 171×5
    Solution:
    171×5 = 855
    Column vertical calculation:

						1	7	1
✖								5
						8	5	5
						8	5	5

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 160÷8
    Solution:
    160÷8 = 20
    Column vertical calculation:

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

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 18×40
    Solution:
    18×40 = 720
    Column vertical calculation:

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

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>>注：本次最多计算 7 道题。

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