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: 34×300
    Solution:
    34×300 = 10200
    Column vertical calculation:

								3	4
✖							3	0	0
								0	0
							0	0
					1	0	2
					1	0	2	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 153×30
    Solution:
    153×30 = 4590
    Column vertical calculation:

							1	5	3
✖								3	0
							0	0	0
						4	5	9
						4	5	9	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 2100÷60
    Solution:
    2100÷60 = 35
    Column vertical calculation:

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

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 66×60
    Solution:
    66×60 = 3960
    Column vertical calculation:

							6	6
✖							6	0
							0	0
					3	9	6
					3	9	6	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 220×6
    Solution:
    220×6 = 1320
    Column vertical calculation:

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

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1300÷130
    Solution:
    1300÷130 = 10
    Column vertical calculation:

						1	0
1	3	0	丿	1	3	0	0
				1	3	0
						0	0
							0
							0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 350×20
    Solution:
    350×20 = 7000
    Column vertical calculation:

							3	5	0
✖								2	0
							0	0	0
						7	0	0
						7	0	0	0

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>>注：本次最多计算 7 道题。

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