1001乘26減125乘26乘8巧算怎么做?
1001乘26減125乘26乘8巧算怎么做?
還有810乘81除27
還有810乘81除27
數(shù)學人氣:374 ℃時間:2020-04-15 10:46:22
優(yōu)質(zhì)解答
(1000+1)x26-125x8x26=26000+26-26000=26.90x9x9x9除(3x9)=10x3x9x9=30x81=30x(80+1)=2400+30=2430
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