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: 34+11
    Solution:
    34+11 = 45
    Column vertical calculation:

			3	4
➕			1	1
			4	5

[2/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 45+30
    Solution:
    45+30 = 75
    Column vertical calculation:

			4	5
➕			3	0
			7	5

[3/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 32+30
    Solution:
    32+30 = 62
    Column vertical calculation:

			3	2
➕			3	0
			6	2

[4/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 23+4
    Solution:
    23+4 = 27
    Column vertical calculation:

			2	3
➕				4
			2	7

[5/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 35+10
    Solution:
    35+10 = 45
    Column vertical calculation:

			3	5
➕			1	0
			4	5

[6/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 21+42
    Solution:
    21+42 = 63
    Column vertical calculation:

			2	1
➕			4	2
			6	3

[7/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 21+11
    Solution:
    21+11 = 32
    Column vertical calculation:

			2	1
➕			1	1
			3	2

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>>注：本次最多计算 7 道题。

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