计算:1998+199.8+19.98+1.998.
计算:1998+199.8+19.98+1.998.
计算 199.8+19.98+1.998+2.222
计算:19.98×37-199.8×1.9+1998×0.82=______.
19.98×37-199.8×1.9+1.998×20简便计算怎么算
用简便方法计算:19.98*37-199.8*1.9+1998*0.82
1998+199.8+19.98+1.98+2.222计算过程怎么算
用简便方法计算 19.98×37-199.8×1.9+1998×0.82
计算:1.996+19.97+199.8=______.
(1)1.99×199.8-19.98×19.7简便计算(2)1999+999×999简便计算
199.9×19.98-19.99×199.8用简便方法怎么计算
计算:19.98×37+199.8×2.3+9.99×80=
看图列式计算.(计算后要写答语)