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

[1/7 Formula]
    Work: Calculate the value of equation 2×45×50 .
    Question type: Mathematical calculation
    Solution:
          2×45×50
        =90×50
        =4500
    Answer:2×45×50=4500
[2/7 Formula]
    Work: Calculate the value of equation 25×42×40 .
    Question type: Mathematical calculation
    Solution:
          25×42×40
        =1050×40
        =42000
    Answer:25×42×40=42000
[3/7 Formula]
    Work: Calculate the value of equation 40×73×25 .
    Question type: Mathematical calculation
    Solution:
          40×73×25
        =2920×25
        =73000
    Answer:40×73×25=73000
[4/7 Formula]
    Work: Calculate the value of equation 12×72×50 .
    Question type: Mathematical calculation
    Solution:
          12×72×50
        =864×50
        =43200
    Answer:12×72×50=43200
[5/7 Formula]
    Work: Calculate the value of equation 25×57×40 .
    Question type: Mathematical calculation
    Solution:
          25×57×40
        =1425×40
        =57000
    Answer:25×57×40=57000
[6/7 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
[7/7 Formula]
    Work: Calculate the value of equation 2×20×50 .
    Question type: Mathematical calculation
    Solution:
          2×20×50
        =40×50
        =2000
    Answer:2×20×50=2000

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>>注：本次最多计算 7 道题。

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