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

[1/7 Formula]
    Work: Calculate the value of equation (200+90)×25 .
    Question type: Mathematical calculation
    Solution:
          (200+90)×25
        =290×25
        =7250
    Answer:(200+90)×25=7250
[2/7 Formula]
    Work: Calculate the value of equation (100+200)×250 .
    Question type: Mathematical calculation
    Solution:
          (100+200)×250
        =300×250
        =75000
    Answer:(100+200)×250=75000
[3/7 Formula]
    Work: Calculate the value of equation (2+500)×300 .
    Question type: Mathematical calculation
    Solution:
          (2+500)×300
        =502×300
        =150600
    Answer:(2+500)×300=150600
[4/7 Formula]
    Work: Calculate the value of equation (4+500)×1500 .
    Question type: Mathematical calculation
    Solution:
          (4+500)×1500
        =504×1500
        =756000
    Answer:(4+500)×1500=756000
[5/7 Formula]
    Work: Calculate the value of equation 80×(75+300) .
    Question type: Mathematical calculation
    Solution:
          80×(75+300)
        =80×375
        =30000
    Answer:80×(75+300)=30000
[6/7 Formula]
    Work: Calculate the value of equation 800×(400+75) .
    Question type: Mathematical calculation
    Solution:
          800×(400+75)
        =800×475
        =380000
    Answer:800×(400+75)=380000
[7/7 Formula]
    Work: Calculate the value of equation 240×(25+800) .
    Question type: Mathematical calculation
    Solution:
          240×(25+800)
        =240×825
        =198000
    Answer:240×(25+800)=198000

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>>注：本次最多计算 7 道题。

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