Overview: 3 questions will be solved this time.Among them
           ☆3 arithmetic calculations

[1/3 Formula]
    Work: Calculate the value of equation 10×0.19+10×0.286+8×0.238+6×0.095+6×0.1487×0.048 .
    Question type: Mathematical calculation
    Solution:
          10×0.19+10×0.286+8×0.238+6×0.095+6×0.1487×0.048
        =1.9+10×0.286+8×0.238+6×0.095+6×0.1487×0.048
        =1.9+2.86+8×0.238+6×0.095+6×0.1487×0.048
        =1.9+2.86+1.904+6×0.095+6×0.1487×0.048
        =1.9+2.86+1.904+0.57+6×0.1487×0.048
        =1.9+2.86+1.904+0.57+0.8922×0.048
        =1.9+2.86+1.904+0.57+0.042826
        =4.76+1.904+0.57+0.042826
        =6.664+0.57+0.042826
        =7.234+0.042826
        =7.276826
    Answer:10×0.19+10×0.286+8×0.238+6×0.095+6×0.1487×0.048=7.276826
[2/3 Formula]
    Work: Calculate the value of equation 8×0.19+7×0.286+9×0.238+9×0.095+8×0.143+9×0.048 .
    Question type: Mathematical calculation
    Solution:
          8×0.19+7×0.286+9×0.238+9×0.095+8×0.143+9×0.048
        =1.52+7×0.286+9×0.238+9×0.095+8×0.143+9×0.048
        =1.52+2.002+9×0.238+9×0.095+8×0.143+9×0.048
        =1.52+2.002+2.142+9×0.095+8×0.143+9×0.048
        =1.52+2.002+2.142+0.855+8×0.143+9×0.048
        =1.52+2.002+2.142+0.855+1.144+9×0.048
        =1.52+2.002+2.142+0.855+1.144+0.432
        =3.522+2.142+0.855+1.144+0.432
        =5.664+0.855+1.144+0.432
        =6.519+1.144+0.432
        =7.663+0.432
        =8.095
    Answer:8×0.19+7×0.286+9×0.238+9×0.095+8×0.143+9×0.048=8.095
[3/3 Formula]
    Work: Calculate the value of equation 7×0.19+6×0.286+10×0.238+10×0.095+10×0.143+10×0.048 .
    Question type: Mathematical calculation
    Solution:
          7×0.19+6×0.286+10×0.238+10×0.095+10×0.143+10×0.048
        =1.33+6×0.286+10×0.238+10×0.095+10×0.143+10×0.048
        =1.33+1.716+10×0.238+10×0.095+10×0.143+10×0.048
        =1.33+1.716+2.38+10×0.095+10×0.143+10×0.048
        =1.33+1.716+2.38+0.95+10×0.143+10×0.048
        =1.33+1.716+2.38+0.95+1.43+10×0.048
        =1.33+1.716+2.38+0.95+1.43+0.48
        =3.046+2.38+0.95+1.43+0.48
        =5.426+0.95+1.43+0.48
        =6.376+1.43+0.48
        =7.806+0.48
        =8.286
    Answer:7×0.19+6×0.286+10×0.238+10×0.095+10×0.143+10×0.048=8.286

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