本文目录一览1,10029929829722212怎么算2,10029929829522212多少3,1002992982952221要有过程4,479999971009724722536623054547735710111379975,100299298297296222126,2001220002199722212是多少7,10029729622212怎么算1,10029929829722212怎么算100^2-99^2+98^2-97^2+……+2^2-1^2=(100+99)+(98+97)+……