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

[1/7 Formula]
    Work: Calculate the value of equation 6.5-5.66 .
    Question type: Mathematical calculation
    Solution:
          6.5-5.66
        =0.84
    Answer:6.5-5.66=0.84
[2/7 Formula]
    Work: Calculate the value of equation 4.53-2.5 .
    Question type: Mathematical calculation
    Solution:
          4.53-2.5
        =2.03
    Answer:4.53-2.5=2.03
[3/7 Formula]
    Work: Calculate the value of equation 3.2-2.38 .
    Question type: Mathematical calculation
    Solution:
          3.2-2.38
        =0.82
    Answer:3.2-2.38=0.82
[4/7 Formula]
    Work: Calculate the value of equation 2.1-1.81 .
    Question type: Mathematical calculation
    Solution:
          2.1-1.81
        =0.29
    Answer:2.1-1.81=0.29
[5/7 Formula]
    Work: Calculate the value of equation 5.4-2.52 .
    Question type: Mathematical calculation
    Solution:
          5.4-2.52
        =2.88
    Answer:5.4-2.52=2.88
[6/7 Formula]
    Work: Calculate the value of equation 7.58-1.9 .
    Question type: Mathematical calculation
    Solution:
          7.58-1.9
        =5.68
    Answer:7.58-1.9=5.68
[7/7 Formula]
    Work: Calculate the value of equation 7.86-4.2 .
    Question type: Mathematical calculation
    Solution:
          7.86-4.2
        =3.66
    Answer:7.86-4.2=3.66

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>>注：本次最多计算 7 道题。

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