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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 80.87×0.656-2×21.9×0.81 .
    Question type: Mathematical calculation
    Solution:
          80.87×0.656-2×21.9×0.81
        =53.05072-2×21.9×0.81
        =53.05072-43.8×0.81
        =53.05072-35.478
        =17.57272

    Answer:80.87×0.656-2×21.9×0.81=17.57272


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