19.98×37-199.8×1.9 1998×0.
19.98×37-199.8×1.9 1998×0.
用简便方法计算:19.98*37-199.8*1.9+1998*0.82
用简便方法计算 19.98×37-199.8×1.9+1998×0.82
计算:19.98×37-199.8×1.9+1998×0.82=______.
19.98*37-199.8*1.9+1998*0.82的简便运算
简算19.98×37-199.8×1.9+1998×0.82 7×13×(
19.98×37-199.8×1.9+1.998×20简便计算怎么算
第一讲全部答案,2000×199.9-1999×199.8 19.98×37-199.8×1.9+1.998×820 9
四道简便计算,..四道:答完了我会忠心感谢你的!1:19.98乘37-199.8乘1.9=1998乘0.822:7.6乘
计算:1998+199.8+19.98+1.998.
1998+199.8+19.98+1.998+2.222=
简便运算:1998+199.8+19.98+1.998+0.1998