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

[1/7 Formula]
    Work: Calculate the value of equation 4.9-1.5 .
    Question type: Mathematical calculation
    Solution:
          4.9-1.5
        =3.4
    Answer:4.9-1.5=3.4
[2/7 Formula]
    Work: Calculate the value of equation 58-5.3 .
    Question type: Mathematical calculation
    Solution:
          58-5.3
        =52.7
    Answer:58-5.3=52.7
[3/7 Formula]
    Work: Calculate the value of equation 8.6+6.7 .
    Question type: Mathematical calculation
    Solution:
          8.6+6.7
        =15.3
    Answer:8.6+6.7=15.3
[4/7 Formula]
    Work: Calculate the value of equation 11.9+15.2 .
    Question type: Mathematical calculation
    Solution:
          11.9+15.2
        =27.1
    Answer:11.9+15.2=27.1
[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 94-32
    Solution:
    94-32 = 62
    Column vertical calculation:

			9	4
➖			3	2
			6	2

[6/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 65+16
    Solution:
    65+16 = 81
    Column vertical calculation:

			6	5
➕			11	6
			8	1

[7/7 Formula]
    Work: Calculate the value of equation 1.5+13.9 .
    Question type: Mathematical calculation
    Solution:
          1.5+13.9
        =15.4
    Answer:1.5+13.9=15.4

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>>注：本次最多计算 7 道题。

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