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

[1/7 Formula]
    Work: Calculate the value of equation 9.86-6.4 .
    Question type: Mathematical calculation
    Solution:
          9.86-6.4
        =3.46
    Answer:9.86-6.4=3.46
[2/7 Formula]
    Work: Calculate the value of equation 8.2-4.68 .
    Question type: Mathematical calculation
    Solution:
          8.2-4.68
        =3.52
    Answer:8.2-4.68=3.52
[3/7 Formula]
    Work: Calculate the value of equation 5.44-2.2 .
    Question type: Mathematical calculation
    Solution:
          5.44-2.2
        =3.24
    Answer:5.44-2.2=3.24
[4/7 Formula]
    Work: Calculate the value of equation 8.65-7.3 .
    Question type: Mathematical calculation
    Solution:
          8.65-7.3
        =1.35
    Answer:8.65-7.3=1.35
[5/7 Formula]
    Work: Calculate the value of equation 5.3-3.77 .
    Question type: Mathematical calculation
    Solution:
          5.3-3.77
        =1.53
    Answer:5.3-3.77=1.53
[6/7 Formula]
    Work: Calculate the value of equation 7.2-4.33 .
    Question type: Mathematical calculation
    Solution:
          7.2-4.33
        =2.87
    Answer:7.2-4.33=2.87
[7/7 Formula]
    Work: Calculate the value of equation 25.3-19 .
    Question type: Mathematical calculation
    Solution:
          25.3-19
        =6.3
    Answer:25.3-19=6.3

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>>注：本次最多计算 7 道题。

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