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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation 0.1×20.67×(0.9)^2+0.177×1.46×(0.9)^2 .
    Question type: Mathematical calculation
    Solution:
          0.1×20.67×(0.9)^2+0.177×1.46×(0.9)^2
        =0.1×20.67×0.9^2+0.177×1.46×(0.9)^2
        =0.1×20.67×0.9^2+0.177×1.46×0.9^2
        =0.1×20.67×0.81+0.177×1.46×0.9^2
        =0.1×20.67×0.81+0.177×1.46×0.81
        =2.067×0.81+0.177×1.46×0.81
        =1.67427+0.177×1.46×0.81
        =1.67427+0.25842×0.81
        =1.67427+0.20932
        =1.88359
    Answer:0.1×20.67×(0.9)^2+0.177×1.46×(0.9)^2=1.88359

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