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

[1/7 Formula]
    Work: Calculate the value of equation 2×73×50 .
    Question type: Mathematical calculation
    Solution:
          2×73×50
        =146×50
        =7300
    Answer:2×73×50=7300
[2/7 Formula]
    Work: Calculate the value of equation 5×13×2 .
    Question type: Mathematical calculation
    Solution:
          5×13×2
        =65×2
        =130
    Answer:5×13×2=130
[3/7 Formula]
    Work: Calculate the value of equation 5×19×20 .
    Question type: Mathematical calculation
    Solution:
          5×19×20
        =95×20
        =1900
    Answer:5×19×20=1900
[4/7 Formula]
    Work: Calculate the value of equation 100×21×71 .
    Question type: Mathematical calculation
    Solution:
          100×21×71
        =2100×71
        =149100
    Answer:100×21×71=149100
[5/7 Formula]
    Work: Calculate the value of equation 2×73×50 .
    Question type: Mathematical calculation
    Solution:
          2×73×50
        =146×50
        =7300
    Answer:2×73×50=7300
[6/7 Formula]
    Work: Calculate the value of equation 5×78×2 .
    Question type: Mathematical calculation
    Solution:
          5×78×2
        =390×2
        =780
    Answer:5×78×2=780
[7/7 Formula]
    Work: Calculate the value of equation 25×14×20 .
    Question type: Mathematical calculation
    Solution:
          25×14×20
        =350×20
        =7000
    Answer:25×14×20=7000

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>>注：本次最多计算 7 道题。

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