0.1999+1.999+19.99+199.9
1个回答
0.1999+1.999+19.99+199.9
=0.2+2+20+200-0.1-0.01-0.001.0.0001
=222.2-0.1111
=222.0889
相关问题
1999+199.9+19.99+1.999+0.1999
1999+199.9+19.99+1.999+0.1999
1999+199.9+19.99+1.999=?
1999+199.9+19.99+1.999 简算
1999+199.9+19.99+1.999=(简便运算)
巧算∶1.999+19.99+199.9+1999
1999+199.9+19.99+1.999+2.111简便运算
0.1999+1.999+19.99+199.9如何用简便算法算出来
√9×9+19;√99×99+199; √999×999+1999 √9999×9999+19999;
1999+199.9+19.99+1.999+2.111怎么算简便