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

[1/7 Formula]
    Work: Calculate the value of equation 955+260+340+245 .
    Question type: Mathematical calculation
    Solution:
          955+260+340+245
        =1215+340+245
        =1555+245
        =1800
    Answer:955+260+340+245=1800
[2/7 Formula]
    Work: Calculate the value of equation 845-180-345 .
    Question type: Mathematical calculation
    Solution:
          845-180-345
        =665-345
        =320
    Answer:845-180-345=320
[3/7 Formula]
    Work: Calculate the value of equation 987-(287+135) .
    Question type: Mathematical calculation
    Solution:
          987-(287+135)
        =987-422
        =565
    Answer:987-(287+135)=565
[4/7 Formula]
    Work: Calculate the value of equation 478+256+122 .
    Question type: Mathematical calculation
    Solution:
          478+256+122
        =734+122
        =856
    Answer:478+256+122=856
[5/7 Formula]
    Work: Calculate the value of equation 672+36+64 .
    Question type: Mathematical calculation
    Solution:
          672+36+64
        =708+64
        =772
    Answer:672+36+64=772
[6/7 Formula]
    Work: Calculate the value of equation 36+64-36-64 .
    Question type: Mathematical calculation
    Solution:
          36+64-36-64
        =100-36-64
        =64-64
        =0
    Answer:36+64-36-64=0
[7/7 Formula]
    Work: Calculate the value of equation 487-387+239+61 .
    Question type: Mathematical calculation
    Solution:
          487-387+239+61
        =100+239+61
        =339+61
        =400
    Answer:487-387+239+61=400

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>>注：本次最多计算 7 道题。

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