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

[1/7 Formula]
    Work: Calculate the value of equation 18+22-15 .
    Question type: Mathematical calculation
    Solution:
          18+22-15
        =40-15
        =25
    Answer:18+22-15=25
[2/7 Formula]
    Work: Calculate the value of equation 48+13-25 .
    Question type: Mathematical calculation
    Solution:
          48+13-25
        =61-25
        =36
    Answer:48+13-25=36
[3/7 Formula]
    Work: Calculate the value of equation 55-33+10 .
    Question type: Mathematical calculation
    Solution:
          55-33+10
        =22+10
        =32
    Answer:55-33+10=32
[4/7 Formula]
    Work: Calculate the value of equation 65-35+25 .
    Question type: Mathematical calculation
    Solution:
          65-35+25
        =30+25
        =55
    Answer:65-35+25=55
[5/7 Formula]
    Work: Calculate the value of equation 70+10-20 .
    Question type: Mathematical calculation
    Solution:
          70+10-20
        =80-20
        =60
    Answer:70+10-20=60
[6/7 Formula]
    Work: Calculate the value of equation 66-22+12 .
    Question type: Mathematical calculation
    Solution:
          66-22+12
        =44+12
        =56
    Answer:66-22+12=56
[7/7 Formula]
    Work: Calculate the value of equation 40+60-20 .
    Question type: Mathematical calculation
    Solution:
          40+60-20
        =100-20
        =80
    Answer:40+60-20=80

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>>注：本次最多计算 7 道题。

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