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

[1/7 Formula]
    Work: Calculate the value of equation (15.28+28.99)+20.72 .
    Question type: Mathematical calculation
    Solution:
          (15.28+28.99)+20.72
        =44.27+20.72
        =64.99
    Answer:(15.28+28.99)+20.72=64.99
[2/7 Formula]
    Work: Calculate the value of equation 2.51+3.53+0.49-5.4+1.47 .
    Question type: Mathematical calculation
    Solution:
          2.51+3.53+0.49-5.4+1.47
        =6.04+0.49-5.4+1.47
        =6.53-5.4+1.47
        =1.13+1.47
        =2.6
    Answer:2.51+3.53+0.49-5.4+1.47=2.6
[3/7 Formula]
    Work: Calculate the value of equation 14.27-9.62-4.38 .
    Question type: Mathematical calculation
    Solution:
          14.27-9.62-4.38
        =4.65-4.38
        =0.27
    Answer:14.27-9.62-4.38=0.27
[4/7 Formula]
    Work: Calculate the value of equation 18.3+4.7-2.81-7.19 .
    Question type: Mathematical calculation
    Solution:
          18.3+4.7-2.81-7.19
        =23-2.81-7.19
        =20.19-7.19
        =13
    Answer:18.3+4.7-2.81-7.19=13
[5/7 Formula]
    Work: Calculate the value of equation 17.5-3.56-6.44 .
    Question type: Mathematical calculation
    Solution:
          17.5-3.56-6.44
        =13.94-6.44
        =7.5
    Answer:17.5-3.56-6.44=7.5
[6/7 Formula]
    Work: Calculate the value of equation 120.39-87.62-12.38 .
    Question type: Mathematical calculation
    Solution:
          120.39-87.62-12.38
        =32.77-12.38
        =20.39
    Answer:120.39-87.62-12.38=20.39
[7/7 Formula]
    Work: Calculate the value of equation 8.53-2.72-3.28 .
    Question type: Mathematical calculation
    Solution:
          8.53-2.72-3.28
        =5.81-3.28
        =2.53
    Answer:8.53-2.72-3.28=2.53

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>>注：本次最多计算 7 道题。

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