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: 999-398
    Solution:
    999-398 = 601
    Column vertical calculation:

			9	9	9
➖			3	9	8
			6	0	1

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 1844-932
    Solution:
    1844-932 = 912
    Column vertical calculation:

			1
			1	8	4	4
➖				9	3	2
			0	9	1	2

[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 801-265
    Solution:
    801-265 = 536
    Column vertical calculation:

			1	1
			8	0	1
➖			2	6	5
			5	3	6

[4/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 814-551
    Solution:
    814-551 = 263
    Column vertical calculation:

			1
			8	1	4
➖			5	5	1
			2	6	3

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 665-108
    Solution:
    665-108 = 557
    Column vertical calculation:

				1
			6	6	5
➖			1	0	8
			5	5	7

[6/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 729-208
    Solution:
    729-208 = 521
    Column vertical calculation:

			7	2	9
➖			2	0	8
			5	2	1

[7/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 606-312
    Solution:
    606-312 = 294
    Column vertical calculation:

			1
			6	0	6
➖			3	1	2
			2	9	4

---

>>注：本次最多计算 7 道题。

Your problem has not been solved here? Please go to the Hot Problems section！