Overview: 6 questions will be solved this time.Among them
           ☆6 arithmetic calculations

[1/6 Formula]
    Work: Calculate the value of equation 10+(20-15)+(20-12) .
    Question type: Mathematical calculation
    Solution:
          10+(20-15)+(20-12)
        =10+5+(20-12)
        =10+5+8
        =15+8
        =23
    Answer:10+(20-15)+(20-12)=23
[2/6 Formula]
    Work: Calculate the value of equation 40+(20*10*4-140) .
    Question type: Mathematical calculation
    Solution:
          40+(20*10*4-140)
        =40+660
        =700
    Answer:40+(20*10*4-140)=700
[3/6 Formula]
    Work: Calculate the value of equation 1372/(7*7*7)*100 .
    Question type: Mathematical calculation
    Solution:
          1372/(7*7*7)*100
        =1372/343*100
        =4*100
        =400
    Answer:1372/(7*7*7)*100=400
[4/6 Formula]
    Work: Calculate the value of equation (400-(600-400))/(4+4) .
    Question type: Mathematical calculation
    Solution:
          (400-(600-400))/(4+4)
        =(400-200)/(4+4)
        =200/(4+4)
        =200/8
        =25
    Answer:(400-(600-400))/(4+4)=25
[5/6 Formula]
    Work: Calculate the value of equation (800-(900-500-300))/7 .
    Question type: Mathematical calculation
    Solution:
          (800-(900-500-300))/7
        =(800-100)/7
        =700/7
        =100
    Answer:(800-(900-500-300))/7=100
[6/6 Formula]
    Work: Calculate the value of equation (120-20+50)/3*10 .
    Question type: Mathematical calculation
    Solution:
          (120-20+50)/3*10
        =150/3*10
        =50*10
        =500
    Answer:(120-20+50)/3*10=500

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