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 addition
    Original question: 101+2
    Solution:
    101+2 = 103
    Column vertical calculation:

			1	0	1
➕					2
			1	0	3

[2/7 Formula]
    Work: Calculate the value of equation 6.8+5.7 .
    Question type: Mathematical calculation
    Solution:
          6.8+5.7
        =12.5
    Answer:6.8+5.7=12.5
[3/7 Formula]
    Work: Calculate the value of equation 7.9+5.6 .
    Question type: Mathematical calculation
    Solution:
          7.9+5.6
        =13.5
    Answer:7.9+5.6=13.5
[4/7 Formula]
    Work: Calculate the value of equation 12.6+9 .
    Question type: Mathematical calculation
    Solution:
          12.6+9
        =21.6
    Answer:12.6+9=21.6
[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 85-13
    Solution:
    85-13 = 72
    Column vertical calculation:

			8	5
➖			1	3
			7	2

[6/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 75-14
    Solution:
    75-14 = 61
    Column vertical calculation:

			7	5
➖			1	4
			6	1

[7/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 131+4
    Solution:
    131+4 = 135
    Column vertical calculation:

			1	3	1
➕					4
			1	3	5

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>>注：本次最多计算 7 道题。

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