Overview: 4 questions will be solved this time.Among them
           ☆4 arithmetic calculations

[1/4 Formula]
    Work: Calculate the value of equation 2.32323232323232323×5.55555555555555555 .
    Question type: Mathematical calculation
    Solution:
          2.32323232323232323×5.55555555555555555
        =12.906846
    Answer:2.32323232323232323×5.55555555555555555=12.906846
[2/4 Formula]
    Work: Calculate the value of equation 1.99999999999999999×7.99999999999999999 .
    Question type: Mathematical calculation
    Solution:
          1.99999999999999999×7.99999999999999999
        =16
    Answer:1.99999999999999999×7.99999999999999999=16
[3/4 Formula]
    Work: Calculate the value of equation (0.1+0.2+0.3)÷(0.1×0.1×0.1+0.2×0.2×0.2+0.3×0.3×0.3) .
    Question type: Mathematical calculation
    Solution:
          (0.1+0.2+0.3)÷(0.1×0.1×0.1+0.2×0.2×0.2+0.3×0.3×0.3)
        =0.6÷(0.1×0.1×0.1+0.2×0.2×0.2+0.3×0.3×0.3)
        =0.6÷0.036
        =16.666667
    Answer:(0.1+0.2+0.3)÷(0.1×0.1×0.1+0.2×0.2×0.2+0.3×0.3×0.3)=16.666667
[4/4 Formula]
    Work: Calculate the value of equation 90-45-22.5-11.25-5.625-2.8125-1.40625 .
    Question type: Mathematical calculation
    Solution:
          90-45-22.5-11.25-5.625-2.8125-1.40625
        =45-22.5-11.25-5.625-2.8125-1.40625
        =22.5-11.25-5.625-2.8125-1.40625
        =11.25-5.625-2.8125-1.40625
        =5.625-2.8125-1.40625
        =2.8125-1.40625
        =1.40625
    Answer:90-45-22.5-11.25-5.625-2.8125-1.40625=1.40625

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