2+20+200+2000-0.001-0.01-0.1-1=2222-1.111=2220.889
巧算∶1.999+19.99+199.9+1999
2个回答
相关问题
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1999+199.9+19.99+1.999 简算
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1999+199.9+19.99+1.999=?
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1999+199.9+19.99+1.999+0.1999
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1999+199.9+19.99+1.999+0.1999
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0.1999+1.999+19.99+199.9
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1999+199.9+19.99+1.999+2.111怎么算简便
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1999+199.9+19.99+1.999=(简便运算)
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0.1999+1.999+19.99+199.9如何用简便算法算出来
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1999+199.9+19.99+1.999+2.111简便运算
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√9×9+19;√99×99+199; √999×999+1999 √9999×9999+19999;