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11+192+193+19994+199995=
人气:205 ℃ 时间:2020-04-03 09:04:12
解答
11+192+193+19994+199995
=(10+1)+(200-8)+(200-7)+(20000-6)+(200000-5)
=(10+200+200+20000+200000)-(8+7+6+5-1)
=220410-25,
=220385.
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