有效數(shù)字的運(yùn)算規(guī)則
1、加減運(yùn)算:先按小數(shù)點(diǎn)后位數(shù)最少的數(shù)據(jù)保留其它各數(shù)的位數(shù),再進(jìn)行加減計(jì)算,計(jì)算結(jié)果也使小數(shù)點(diǎn)后保留相同的位數(shù)。2、乘除運(yùn)算:先按有效數(shù)字最少的數(shù)據(jù)保留其它各數(shù)...
閱讀更多1、加減運(yùn)算:先按小數(shù)點(diǎn)后位數(shù)最少的數(shù)據(jù)保留其它各數(shù)的位數(shù),再進(jìn)行加減計(jì)算,計(jì)算結(jié)果也使小數(shù)點(diǎn)后保留相同的位數(shù)。2、乘除運(yùn)算:先按有效數(shù)字最少的數(shù)據(jù)保留其它各數(shù)...
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