3.2*0.25*12.5=
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![3.2*0.25*12.5=](/uploads/image/f/274774-22-4.jpg?t=3.2%2A0.25%2A12.5%3D)
(0.8x12.5)x(0.25x0.4)
100.01*2.7=100*2.7+0.01*2.7=270+0.027=270.0270.42*160+36*1.6-34*3.2=42*1.6+36*1.6-68*1.6=(42+36-68)*
456-200+245×(1-0.01)=45×1+45×0.012.5×4×9720÷(5×6)=720÷300.4×8×12.5×0.25=(0.4×0.25)×(8×12.5)
=12.5*0.25*4*0.8=(12.5*0.8)*(0.25*4)=10*1=10
上式=0.4×(8×12.5)+0.006×(8×125)=0.4×100+0.006×1000=46再问:2009*2010分之2008=?列算式再答:这个分子分母只能约去2了。=1004/2019
15÷12.5=15×8÷(12.5×8)=120÷100=1.212.5×3.2×0.25=(12.5×0.8)×(4×0.25)=10×1=10
0.25*12.5*32=0.25x12.5x4x8=(0.25x4)x(8x12.5)=1x100=100
3.2可以拆成0.8乘4再把12.5乘0.8把0.25乘4就可以了
3.2(0.25+17/6)=3.2*0.25+3.2*17/6=0.8+(16/5)*(17/6)=4/5+136/15=(12+136)/15=148/1512.5/(5/3)+9/64=12.5
0.125×3.2-0.25×0.16=0.125*8*0.4-0.25*4*0.04=1*0.4-1*0.04=0.4-0.04=0.36
(3)12.5*32*0.25=12.5*8*(4*0.25)=100*1=100再问:其他几个我也要
12.5*3.2-0.25x32=12.5x3.2-2.5x3.2=3.2x(12.5-2.5)=3.2x10=32
555785852再问:10个金币哦再问:10个金币哦
12.5*0.25*3.2=12.5*0.25*0.8*4=12.5*0.8*0.25*4=10*1=10
12.5*0.8*0.25*4=10*1=10(3.2=0.8*4)
2.5+36=38.53.2×12.5×0.25=4×0.8×12.5×0.25=4×0.25×0.8×12.5=1×10=10再问:第一个式子不小心打错了,是2.5×36,用简便方法计算啊再答:2.