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

[1/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 694+149
    Solution:
    694+149 = 843
    Column vertical calculation:

			6	9	4
➕			11	41	9
			8	4	3

[2/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 651+615
    Solution:
    651+615 = 1266
    Column vertical calculation:

			6	5	1
➕		1	6	1	5
		1	2	6	6

[3/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 361+331
    Solution:
    361+331 = 692
    Column vertical calculation:

			3	6	1
➕			3	3	1
			6	9	2

[4/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 332+384
    Solution:
    332+384 = 716
    Column vertical calculation:

			3	3	2
➕			31	8	4
			7	1	6

[5/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 515+483
    Solution:
    515+483 = 998
    Column vertical calculation:

			5	1	5
➕			4	8	3
			9	9	8

[6/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 156+225
    Solution:
    156+225 = 381
    Column vertical calculation:

			1	5	6
➕			2	21	5
			3	8	1

[7/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 878+128
    Solution:
    878+128 = 1006
    Column vertical calculation:

			8	7	8
➕		1	11	21	8
		1	0	0	6

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>>注：本次最多计算 7 道题。

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