我想作4.65乘32加2.5乘46.5加0.465乘430的题
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68×42+32×58=68×(50-8)+32×(50+8)=3400-68×8+1600+32×8=5000-(68-32)×8=5000-36×8=5000-288=4712
0.12*2.5+0.25*8.8=1.2*0.25+8.8*0.25=0.25*(1.2+8.8)=0.25*10=2.5
第一题:1.98*51-199.8*19+1998*0.82=1.98*51-199.8*(19-8.2)=1.98*51-199.8*10.8=100.98-2157.84=-2056.86第二题:
14x44+12x28+32x14=14x44+24x14+32x14=14x(44+24+32)=14x100=1400
(100-32)X42+32X58=100X42+32X(58-42)=4200+32X16=4200+512=4712
0.94乘2.5加0.094乘75=0.94x2.5+0.94x7.5=0.94x(2.5+7.5)=0.94x10=9.4
寒樱暖暖为你7.8×2.5+78×0.75=7.8×2.5+7.8×7.5=7.8×(2.5+7.5)=7.8×10=78(或在客户端右上角评价点【满意】)是我前进的动力!如有不明白,直到完成弄懂此题
32×(41+87-2)=32×426=32×(100+20+6)=3200+640+196=4036再答:点错了,是+192,最后是4032再答:不是426,是126!手机真他妈不方便!
两种方法1.0.87*2.5+0.87*10*7.5=0.87*(2.5+10*7.5)=0.87*77.52.0.87*2.5+8.7*3*2.5=2.5*(0.87+8.7*3)=2.5*(0.8
32x1.25+12.5x6.8=32x1.25+68x1.25=(32+68)x1.25=100x1.25=125
23×64+54×32=(23×2)×(64÷2)+54×32=46×32+54×32=(46+54)×32=100×32=3200谢谢························
7.5*2.7=2.5*3*2.7=2.5*8.12.5*8.1+1.9*2.5=2.5*(8.1+1.9)=2.5*10=25
2.5×1.2+75×0.125=1.25×2.4+75×0.125=0.125×24+75×0.125=(24+75)×0.125=99×0.125=100×0.125-0.125=12.5-0.1
22乘43加22乘32加75乘18=22乘75加75乘18=40乘75=3000
2.5*0.875+0.25*1.25=2.5*0.875+2.5*1.25/10=2.5*(0.875+1.25/10)=2.5*(0.875+0.125)=2.5请参考.
=9.6+9.9x99=4.65x32+2.5x46.5+0.465x430=9.6+(9.9x100)-9.9=46.5x3.2+46.5x2.5+46.5x4.3=9.6+990-9.9=46.5
=23×2×28+23×4×32+23×16=23×56+23×128+23×16=23×(56+128+16)=23×200=4600
我来再问:你说呀再答:你确定是0.75再答:还是7.5再问:0.75再答:哪2.5呢再问:2.5再问:你会不再答:我想想再答: 再答:我都乱了套了
2.5*13+0.9=32.5+0.9=33.4