4千米800米-2千米60米等于多少?
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4千米800米-2千米60米等于多少?4千米800米-2千米60米等于多少?4千米800米-2千米60米等于多少?4千米800米-2千米60米=4800米-2060米=2740米=2千米740米
4千米800米-2千米60米等于多少?
4千米800米-2千米60米
等于多少?
4千米800米-2千米60米等于多少?
4千米800米-2千米60米
=4800米-2060米
=2740米
=2千米740米