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

[1/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 96-13
    Solution:
    96-13 = 83
    Column vertical calculation:

			9	6
➖			1	3
			8	3

[2/7 Formula]
    Work: Calculate the value of equation 39.2+2.9 .
    Question type: Mathematical calculation
    Solution:
          39.2+2.9
        =42.1
    Answer:39.2+2.9=42.1
[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 109-5
    Solution:
    109-5 = 104
    Column vertical calculation:

			1	0	9
➖					5
			1	0	4

[4/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 13+49
    Solution:
    13+49 = 62
    Column vertical calculation:

			1	3
➕			41	9
			6	2

[5/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 67+56
    Solution:
    67+56 = 123
    Column vertical calculation:

			6	7
➕		1	51	6
		1	2	3

[6/7 Formula]
    Work: Calculate the value of equation 55.9+4 .
    Question type: Mathematical calculation
    Solution:
          55.9+4
        =59.9
    Answer:55.9+4=59.9
[7/7 Formula]
    Work: Calculate the value of equation 6.5+10 .
    Question type: Mathematical calculation
    Solution:
          6.5+10
        =16.5
    Answer:6.5+10=16.5

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>>注：本次最多计算 7 道题。

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