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

[1/7 Formula]
    Work: Calculate the value of equation (20+15)×150 .
    Question type: Mathematical calculation
    Solution:
          (20+15)×150
        =35×150
        =5250
    Answer:(20+15)×150=5250
[2/7 Formula]
    Work: Calculate the value of equation 200×(15+129) .
    Question type: Mathematical calculation
    Solution:
          200×(15+129)
        =200×144
        =28800
    Answer:200×(15+129)=28800
[3/7 Formula]
    Work: Calculate the value of equation (120+40)×125 .
    Question type: Mathematical calculation
    Solution:
          (120+40)×125
        =160×125
        =20000
    Answer:(120+40)×125=20000
[4/7 Formula]
    Work: Calculate the value of equation (120+145)×500 .
    Question type: Mathematical calculation
    Solution:
          (120+145)×500
        =265×500
        =132500
    Answer:(120+145)×500=132500
[5/7 Formula]
    Work: Calculate the value of equation (4+1600)×125 .
    Question type: Mathematical calculation
    Solution:
          (4+1600)×125
        =1604×125
        =200500
    Answer:(4+1600)×125=200500
[6/7 Formula]
    Work: Calculate the value of equation 40×(25+1620) .
    Question type: Mathematical calculation
    Solution:
          40×(25+1620)
        =40×1645
        =65800
    Answer:40×(25+1620)=65800
[7/7 Formula]
    Work: Calculate the value of equation 400×(178+25) .
    Question type: Mathematical calculation
    Solution:
          400×(178+25)
        =400×203
        =81200
    Answer:400×(178+25)=81200

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>>注：本次最多计算 7 道题。

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