(2 4 6 8 10 12.98 100)-(1 3 5 7 .97 99)怎么算

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(24681012.98100)-(1357.9799)怎么算(24681012.98100)-(1357.9799)怎么算(24681012.98100)-(1357.9799)怎么算(2+4+6+

(2 4 6 8 10 12.98 100)-(1 3 5 7 .97 99)怎么算
(2 4 6 8 10 12.98 100)-(1 3 5 7 .97 99)怎么算

(2 4 6 8 10 12.98 100)-(1 3 5 7 .97 99)怎么算
(2+4+6+8+10+12.+98+100)-(1+3+5+7+.+97+99)
=(2-1)+(4-3)+(6-5)+.+(98-97)+(100-99)
=50