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: 984×300
    Solution:
    984×300 = 295200
    Column vertical calculation:

								9	8	4
✖								3	0	0
								0	0	0
							0	0	0
					2	9	5	2
					2	9	5	2	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 9086×60
    Solution:
    9086×60 = 545160
    Column vertical calculation:

							9	0	8	6
✖									6	0
							0	0	0	0
					5	4	5	1	6
					5	4	5	1	6	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 5040÷420
    Solution:
    5040÷420 = 12
    Column vertical calculation:

						1	2
4	2	0	丿	5	0	4	0
				4	2	0
					8	4	0
					8	4	0
							0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 799×400
    Solution:
    799×400 = 319600
    Column vertical calculation:

								7	9	9
✖								4	0	0
								0	0	0
							0	0	0
					3	1	9	6
					3	1	9	6	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 7099×30
    Solution:
    7099×30 = 212970
    Column vertical calculation:

							7	0	9	9
✖									3	0
							0	0	0	0
					2	1	2	9	7
					2	1	2	9	7	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 9360÷720
    Solution:
    9360÷720 = 13
    Column vertical calculation:

						1	3
7	2	0	丿	9	3	6	0
				7	2	0
				2	1	6	0
				2	1	6	0
							0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 447×600
    Solution:
    447×600 = 268200
    Column vertical calculation:

								4	4	7
✖								6	0	0
								0	0	0
							0	0	0
					2	6	8	2
					2	6	8	2	0	0

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>>注：本次最多计算 7 道题。

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