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数学
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1000+999-998-997+996+…+104+103-102-101=( )
A. 225
B. 900
C. 1000
D. 4000
人气:262 ℃ 时间:2019-08-17 19:10:13
解答
1000+999-998-997+996+…+104+103-102-101,
=(1000+999-998-997)+(996+995-994-993)+…+(104+103-102-101),
=4×225,
=900.
故选:B.
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1000+999-998-997+996+…+104+103-102-101=( ) A.225 B.900 C.1000 D.4000
1、计算:1000+999-998-997+996+995-994-993+...+108+107-106-105+104+103-102-101.
1000+999-998-997+996+…+104+103-102-101=( ) A.225 B.900 C.1000 D.4000
1000+999-998-997+996+…+104+103-102-101=( ) A.225 B.900 C.1000 D.4000
1000+999-998-997+996+…+104+103-102-101=( ) A.225 B.900 C.1000 D.4000
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