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: 964×300
    Solution:
    964×300 = 289200
    Column vertical calculation:

								9	6	4
✖								3	0	0
								0	0	0
							0	0	0
					2	8	9	2
					2	8	9	2	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 9067×40
    Solution:
    9067×40 = 362680
    Column vertical calculation:

							9	0	6	7
✖									4	0
							0	0	0	0
					3	6	2	6	8
					3	6	2	6	8	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1260÷420
    Solution:
    1260÷420 = 3
    Column vertical calculation:

							3
4	2	0	丿	1	2	6	0
				1	2	6	0
							0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 164×400
    Solution:
    164×400 = 65600
    Column vertical calculation:

								1	6	4
✖								4	0	0
								0	0	0
							0	0	0
						6	5	6
						6	5	6	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 1061×50
    Solution:
    1061×50 = 53050
    Column vertical calculation:

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

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 900÷300
    Solution:
    900÷300 = 3
    Column vertical calculation:

						3
3	0	0	丿	9	0	0
				9	0	0
						0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 524×800
    Solution:
    524×800 = 419200
    Column vertical calculation:

								5	2	4
✖								8	0	0
								0	0	0
							0	0	0
					4	1	9	2
					4	1	9	2	0	0

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>>注：本次最多计算 7 道题。

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