9.81×0.1+0.5×98.1+0.049×981怎么算?

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9.81×0.1+0.5×98.1+0.049×981怎么算?9.81×0.1+0.5×98.1+0.049×981怎么算?9.81×0.1+0.5×98.1+0.049×981怎么算?9.81×0.

9.81×0.1+0.5×98.1+0.049×981怎么算?
9.81×0.1+0.5×98.1+0.049×981
怎么算?

9.81×0.1+0.5×98.1+0.049×981怎么算?
9.81×0.1+0.5×98.1+0.049×981
=98.1×0.01+0.5×98.1+0.49×98.1
=98.1×(0.01+0.5+0.49)
=98.1×1
=98.1

98.1

化成9.81x (0.1+5+4.9)

9.81×0.1+0.5×98.1+0.049×981
=9.81×0.1+9.81×5+9.81×4.9
=9.81×(0.1+5+4.9)
=9.81×10
=98.1

9.81×0.1+0.5×98.1+0.049×981
=9.81×0.1+5×9.81+4.9×9.81
=9.81×(0.1+5+4.9
=9.81×10
=98.1

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=9.81×0.1+0.5×10×9.81+0.049×9.81×100=9.81×(0.1+5+4.9)=98.1