12.5+3.2x2.5用简便计算

崔敬轮47483.2*12.5*2.5怎么简便运算 -
卫成淑13243848378 ______ 3.2x12.5x2.5 =4x0.8x12.5x 2.5 =(4x2.5)x(0.8x12.5) =10x10 =100

崔敬轮47483.2x2.5x12.5的简便运算怎么算? -
卫成淑13243848378 ______ 4*0.8*2.5*12.5

崔敬轮47486.7x2.5+9.9x7.5+3.2x2.5用简便方法怎么算 -
卫成淑13243848378 ______ 6.7x2.5+9.9x7.5+3.2x2.5 =(6.7*2.5+3.2*2.5)+9.9*7.5 =(6.7+3.2)*2.5+9.9*7.5 =9.9*2.5+9.9*7.5 =9.9*(2.5+7.5) =9.9*10 =99

崔敬轮47483.2+3.2*99简便运算怎么算 -
卫成淑13243848378 ______ 3.2+3.2*99 =3.2*(1+99) =3.2*100 =320 希望我的回答对您有帮助,有问题可以追问. 满意请及时采纳,谢谢!

崔敬轮47483.2x2.5怎样简便就怎样算 -
卫成淑13243848378 ______ 3.2x2.5 =4*0.8*2.5 =4*2.5*0.8 =10*0.8 =8 ======================================== 柳浪闻莺各位芝麻竭诚为您解答 您的采纳是我们坚持百度的动力

崔敬轮47483.2*12.5+0.5的简便运算 -
卫成淑13243848378 ______ 3.2*12.5+0.5 =4x0.8x12.5+0.5 =4x10+0.5 =40+0.5 =40.5

崔敬轮474812.5*3.2 - 0.25*32用简便方法计算 -
卫成淑13243848378 ______ 展开全部12.5*3.2-0.25x32=12.5x3.2-2.5x3.2=3.2x(12.5-2.5)=3.2x10=32

崔敬轮474812.5*32*2.5简便计算 -
卫成淑13243848378 ______ 12.5*32x2.5 =12.5*8x4x2.5 =90*10 =900

崔敬轮47483.2x(1.25+2.5)递等式计算 简便计算 -
卫成淑13243848378 ______[答案] 3.2x(1.25+2.5) =3.2x3.75 =12 或 3.2x(1.25+2.5) =3.2x1.25+3.2x2.5 =4+8 =12

崔敬轮4748简便计算.2.25乘0.9除2.25乘0.9.3.2乘(2.5加12.5) -
卫成淑13243848378 ______ 2.25乘0.9除2.25乘0.9= 2.25除2.25乘0.9乘0.9=0.813.2乘(2.5加12.5)=3.2x2.5+3.2x12.5=0.8x4x2.5+0.4x8x12.5=0.8x10+0.4x10=80+40=120