把算式算清楚。
999999999999999999999+99999999999999999999×99999999999999999.100=?...
999999999999999999999+99999999999999999999×99999999999999999.100=?
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999999999999999999999+99999999999999999999×99999999999999999.100
= 999999999999999999999×(1+99999999999999999.100)
= 999999999999999999999×1000000000000000000.100
= 999999999999999999999×1000000000000000000 + 999999999999999999999×0.100
= 999999999999999999999000000000000000000 + 99999999999999999999.900
= 1000000000000000000000000000000000000000 - 1000000000000000000+99999999999999999999.900
= 1000000000000000000000000000000000000000 + 98999999999999999999.900
= 1000000000000000000098999999999999999999.900
= 999999999999999999999×(1+99999999999999999.100)
= 999999999999999999999×1000000000000000000.100
= 999999999999999999999×1000000000000000000 + 999999999999999999999×0.100
= 999999999999999999999000000000000000000 + 99999999999999999999.900
= 1000000000000000000000000000000000000000 - 1000000000000000000+99999999999999999999.900
= 1000000000000000000000000000000000000000 + 98999999999999999999.900
= 1000000000000000000098999999999999999999.900
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