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Mathematical calculation:
    Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
    It supports mathematical functions (including trigonometric functions).
    Current location:Mathematical operation > History of Mathematical Computation > Answer
    Overview: 1 questions will be solved this time.Among them
           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation 230*0.3+240*0.2+250*0.15+260*0.15+27+280*0.05+290*0.05 .
    Question type: Mathematical calculation
    Solution:
          230*0.3+240*0.2+250*0.15+260*0.15+27+280*0.05+290*0.05
        =69+240*0.2+250*0.15+260*0.15+27+280*0.05+290*0.05
        =69+48+250*0.15+260*0.15+27+280*0.05+290*0.05
        =69+48+37.5+260*0.15+27+280*0.05+290*0.05
        =69+48+37.5+39+27+280*0.05+290*0.05
        =69+48+37.5+39+27+14+290*0.05
        =69+48+37.5+39+27+14+14.5
        =117+37.5+39+27+14+14.5
        =154.5+39+27+14+14.5
        =193.5+27+14+14.5
        =220.5+14+14.5
        =234.5+14.5
        =249

    Answer:230*0.3+240*0.2+250*0.15+260*0.15+27+280*0.05+290*0.05=249


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