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

[1/7 Formula]
    Work: Calculate the value of equation 9.3-3.8 .
    Question type: Mathematical calculation
    Solution:
          9.3-3.8
        =5.5
    Answer:9.3-3.8=5.5
[2/7 Formula]
    Work: Calculate the value of equation 89.23-4.43 .
    Question type: Mathematical calculation
    Solution:
          89.23-4.43
        =84.8
    Answer:89.23-4.43=84.8
[3/7 Formula]
    Work: Calculate the value of equation 78.4-23.1 .
    Question type: Mathematical calculation
    Solution:
          78.4-23.1
        =55.3
    Answer:78.4-23.1=55.3
[4/7 Formula]
    Work: Calculate the value of equation 57.2-57.1 .
    Question type: Mathematical calculation
    Solution:
          57.2-57.1
        =0.1
    Answer:57.2-57.1=0.1
[5/7 Formula]
    Work: Calculate the value of equation 0.04-0.02 .
    Question type: Mathematical calculation
    Solution:
          0.04-0.02
        =0.02
    Answer:0.04-0.02=0.02
[6/7 Formula]
    Work: Calculate the value of equation 38.2-38.1 .
    Question type: Mathematical calculation
    Solution:
          38.2-38.1
        =0.1
    Answer:38.2-38.1=0.1
[7/7 Formula]
    Work: Calculate the value of equation 39.29-37.19 .
    Question type: Mathematical calculation
    Solution:
          39.29-37.19
        =2.1
    Answer:39.29-37.19=2.1

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>>注：本次最多计算 7 道题。

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