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4321*8765—4320*5766
简便运算!
人气:448 ℃ 时间:2020-10-01 18:59:08
解答
4321*8765—4320*5766
=(4320+1)*8765—4320*5766
=4320*(8765-4320)+8765
=12964445
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98765×4321-98766×4320(简便计算)
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99765*4321减98766*4320 怎么巧算
98765*4321—98766*4320
9876+5432+4321+8765
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