Overview: 4 questions will be solved this time.Among them
           ☆4 integer calculations

[1/4 Integer column vertical calculation]
    Question type: Integer division
    Original question: 152/22
    Solution:
    152/22 = 6 ··· ··· 20
    Column vertical calculation:

					6
2	2	丿	1	5	2
			1	3	2
				2	0

[2/4 Integer column vertical calculation]
    Question type: Integer division
    Original question: 293/43
    Solution:
    293/43 = 6 ··· ··· 35
    Column vertical calculation:

					6
4	3	丿	2	9	3
			2	5	8
				3	5

[3/4 Integer column vertical calculation]
    Question type: Integer division
    Original question: 302/44
    Solution:
    302/44 = 6 ··· ··· 38
    Column vertical calculation:

					6
4	4	丿	3	0	2
			2	6	4
				3	8

[4/4 Integer column vertical calculation]
    Question type: Integer division
    Original question: 457/52
    Solution:
    457/52 = 8 ··· ··· 41
    Column vertical calculation:

					8
5	2	丿	4	5	7
			4	1	6
				4	1

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