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

[1/7 Formula]
    Work: Calculate the value of equation 18+2-10 .
    Question type: Mathematical calculation
    Solution:
          18+2-10
        =20-10
        =10
    Answer:18+2-10=10
[2/7 Formula]
    Work: Calculate the value of equation 15+25-20 .
    Question type: Mathematical calculation
    Solution:
          15+25-20
        =40-20
        =20
    Answer:15+25-20=20
[3/7 Formula]
    Work: Calculate the value of equation 30-12+18 .
    Question type: Mathematical calculation
    Solution:
          30-12+18
        =18+18
        =36
    Answer:30-12+18=36
[4/7 Formula]
    Work: Calculate the value of equation 39-14+20 .
    Question type: Mathematical calculation
    Solution:
          39-14+20
        =25+20
        =45
    Answer:39-14+20=45
[5/7 Formula]
    Work: Calculate the value of equation 28-12+40 .
    Question type: Mathematical calculation
    Solution:
          28-12+40
        =16+40
        =56
    Answer:28-12+40=56
[6/7 Formula]
    Work: Calculate the value of equation 20+14-25 .
    Question type: Mathematical calculation
    Solution:
          20+14-25
        =34-25
        =9
    Answer:20+14-25=9
[7/7 Formula]
    Work: Calculate the value of equation 44-22+10 .
    Question type: Mathematical calculation
    Solution:
          44-22+10
        =22+10
        =32
    Answer:44-22+10=32

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>>注：本次最多计算 7 道题。

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