9.81*0.1+98.1*0.5+981*0.49的简便运算

9.81*0.1+0.5*98.1+0.049*981怎样简算 9.81*0.1+0.5*98.1+0.049*981的简便计算 用简便方法计算9.81*0.1+0.5*98.1+0.049*981 9.81*0.1+0.5*98.1+0.049*981怎样简算 9.81×0.1+0.5×98.1+0.049×981怎么算？ 9.81*0.1+98.1*0.5+981*0.49的简便运算 9.81*0.1+0.5*98.1+0.049*981 列式 12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*981= 6789.6789/6.789=每题简算 这道计算题怎么简算?9.81×0.1+0.5×98.1+0.049×981 求帮忙解决2道简算题.9.81×0.1+0.5×98.1+0.049×981999×222+333×334 9.81×0.1+0.5×9.81+0.49×981 简算 9.81*0.1+0.5*9.81+0.049*981=?怎样简算 9.8*0.1+0.5*98.1+0.049*981怎样计算简便 98.1*0.01+5*9.81+0.049*981 计算下面各题.(能简算的要简算)谢谢,急.(1)9.81×0.1＋0.5×98.1＋0.049×981(2)1×2分之1＋2×3分之1＋3×4分之1＋4×5分之1＋……＋199×200分之1 脱式计算（能简算的要简算）①3 －2 ＋5 －1 ②14.85－1.58×8＋31.2÷1.2 ③（1 ＋2 ）÷（2－1 ） ④2.25× ＋2.75÷1 ＋60％ ⑤9.81×0.1＋0.5×98.1＋0.049×981 ⑥1000＋999－998－997＋996＋995－994－993＋…＋104 简便计算：9.81*10%+1/2*98.1+0.049*981 （注：其中1/2分式） 问几道算式,要用简便方法,急用!算式——75*76分之39.81*0.1+0.5*98.1+0.049*98156.8*10.139.5*3.6+843*0.96895.6785/6.785*67.853333*6666