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

[1/7 Formula]
    Work: Calculate the value of equation 84+20-20 .
    Question type: Mathematical calculation
    Solution:
          84+20-20
        =104-20
        =84
    Answer:84+20-20=84
[2/7 Formula]
    Work: Calculate the value of equation 78+(25-18) .
    Question type: Mathematical calculation
    Solution:
          78+(25-18)
        =78+7
        =85
    Answer:78+(25-18)=85
[3/7 Formula]
    Work: Calculate the value of equation 73-(25+15) .
    Question type: Mathematical calculation
    Solution:
          73-(25+15)
        =73-40
        =33
    Answer:73-(25+15)=33
[4/7 Formula]
    Work: Calculate the value of equation 64-23+8 .
    Question type: Mathematical calculation
    Solution:
          64-23+8
        =41+8
        =49
    Answer:64-23+8=49
[5/7 Formula]
    Work: Calculate the value of equation 58-11+15 .
    Question type: Mathematical calculation
    Solution:
          58-11+15
        =47+15
        =62
    Answer:58-11+15=62
[6/7 Formula]
    Work: Calculate the value of equation 22-(51-23) .
    Question type: Mathematical calculation
    Solution:
          22-(51-23)
        =22-28
        =-6
    Answer:22-(51-23)=-6
[7/7 Formula]
    Work: Calculate the value of equation 85-(32+24) .
    Question type: Mathematical calculation
    Solution:
          85-(32+24)
        =85-56
        =29
    Answer:85-(32+24)=29

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>>注：本次最多计算 7 道题。

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