Overview: 7 questions will be solved this time.Among them
           ☆7 integer calculations

[1/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 836-675
    Solution:
    836-675 = 161
    Column vertical calculation:

			1
			8	3	6
➖			6	7	5
			1	6	1

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 961-433
    Solution:
    961-433 = 528
    Column vertical calculation:

				1
			9	6	1
➖			4	3	3
			5	2	8

[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 833-732
    Solution:
    833-732 = 101
    Column vertical calculation:

			8	3	3
➖			7	3	2
			1	0	1

[4/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 625-412
    Solution:
    625-412 = 213
    Column vertical calculation:

			6	2	5
➖			4	1	2
			2	1	3

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 888-644
    Solution:
    888-644 = 244
    Column vertical calculation:

			8	8	8
➖			6	4	4
			2	4	4

[6/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 566-262
    Solution:
    566-262 = 304
    Column vertical calculation:

			5	6	6
➖			2	6	2
			3	0	4

[7/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 961-600
    Solution:
    961-600 = 361
    Column vertical calculation:

			9	6	1
➖			6	0	0
			3	6	1

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>>注：本次最多计算 7 道题。

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