0.3乘2.5乘0.4简便计算

隗全峡26330.3乘2.5乘0.4的简便算法 -
尹珠彭18919062012 ______ 后面两个先算

隗全峡26330.3*2.5*0.4怎么简便计算 -
尹珠彭18919062012 ______ 用乘法结合律: 原式=0.3*1 =0.3

隗全峡26330.3*2.5*0.4怎么*简便运算? -
尹珠彭18919062012 ______ 0.3x2.5x0.4; =3x25x4x0.001; =3x100x0.001; =300x0.001; =0.3

隗全峡26330.3*2.5*0.4的简便 -
尹珠彭18919062012 ______ =2.5*0.4*0.3 =1*0.3 =0.3

隗全峡26330.3*25*0.4简便运算 -
尹珠彭18919062012 ______ (0.3x5)x(0.4x5)

隗全峡26331.72 0.25乘0.4简便算法怎么算 -
尹珠彭18919062012 ______ 1.72 0.25乘0.4简便算法怎么算1.72+ 0.25乘0.4=1.72+0.1=1.82

隗全峡2633小学五年级简便计算题急······· -
尹珠彭18919062012 ______ (a+b)+ c = a +(b+c)1. 2.73 + 0.89 + 1.272. 4.37 + 0.28 + 1.63 + 5.72 a-b-c = a -(b+c)1. 10 - 0.432 - 2.5682. 9.3 - 5.26 - 2.743. 13.4

隗全峡2633简便方法. 2.3*2.5*0.4 0.29*102 1.2*2.5+ -
尹珠彭18919062012 ______ 2.3*2.5*0.4 =2.3*(2.5*0.4) =2.3*1 =2.3 0.29*102 =0.29*(100+2) =0.29*100+0.29*2 =29+0.58 =29.58 1.2*2.5+0.8*2.5 =(1.2+0.8)*2.5 =2*2.5 =5 1.25*0.4*8*2.5 =1.25*8*(0.4*2.5) =10*1 =10 0.125*72 =0.125*8*9 =1*9 =9 0.25*39+0.25 =0.25*(39+1) =0.25*40 =10

隗全峡26330.3*2.4*0.4简便计算怎么算? -
尹珠彭18919062012 ______ 0.3*2.4*0.4 =0.3*0.4*2.4 =0.12*2.4 =0.288

隗全峡26330.3X2.5x0.4乘法结合律
尹珠彭18919062012 ______ =0.3*﹙0.4*2.5﹚=0.3*1=0.3