1998+199.8+19.98+1.998+2.222=
1998+199.8+19.98+1.998+2.222=
计算 199.8+19.98+1.998+2.222
199.8+19.98+1.998+2.222的简便方法?
199.8+19.98+1.998+2.222 要过程
计算:1998+199.8+19.98+1.998.
简便运算:1998+199.8+19.98+1.998+0.1998
1998+199.8+19.98+1.98+2.222计算过程怎么算
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
19.98×37-199.8×1.9 1998×0.
第一讲全部答案,2000×199.9-1999×199.8 19.98×37-199.8×1.9+1.998×820 9
用简便方法计算:19.98*37-199.8*1.9+1998*0.82