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