0.245*28+24.5*3+2.45*7.
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0.245*28+24.5*3+2.45*7.0.245*28+24.5*3+2.45*7.0.245*28+24.5*3+2.45*7.0.245*28+24.5*3+2.45*7.2=0.245*
0.245*28+24.5*3+2.45*7.
0.245*28+24.5*3+2.45*7.
0.245*28+24.5*3+2.45*7.
0.245*28+24.5*3+2.45*7.2
=0.245*28+0.245*300+0.245*72
=0.245x(28+300+72)
=0.245x400
=98
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0.245*28+24.5*3+2.45*7.
0.245×28＋24.5×3＋2.45×7.2 简便计算要准确过程
7.23*2.45-72.3*0.245 简便计算
24.5%=0.245对还是错
24.5%=0.245 （ ）判断就这一道题,我认为对的
14+3x=24.5怎么做?
7.5-2.45+7.5+2.45
求比值：0.25:3,0.05:3,2.45:1.4,1.25:0.25
0.245( )=245( )
0.245吨是多少千克
0.245化成分数是多少
这两题用简便怎么算?4/7×28+10/27÷5/910.36-1.75-0.25-2.45
简便计算:(2889+2907)/28=?39*15/39*15=?、2.45*11-1.17*22=？
3分钟20秒减2.45分钟等于多少秒
求2.45乘7分之3等于几
(100+0.123+0.245+8.9)x(0.123+0.245+8.9+12.71)-(100+0.123+0.245+8.9+12.71)x(0.123+0.245+8.9)等于多少
20×[(2.44-1.8)÷0.4+0.15] 28-(3.4+1.25×2.4) 2.55×720×[(2.44-1.8)÷0.4+0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×[15.5-(3.21+5.79)](31.8+3.2×4) ÷ 531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2 36.25÷4.25×9.9 5180－705×6
1.(-8)-(-1)2.45+(-30)3.-1.5-(-11.5)4.-1/4-(-1/2)5.15-[1-(20-4)]6.-40-28-(-19)+(-24)7.22.54+(-4.4)+(-12.54)+4.48.(2/3-1/2)-(1/3-5/6)-5又1/2、0、2、-7、1.25、—7/3、-3、-3/4正数集合：负数集合：最后不是正数是整数