3.2x1.25x2.5简便运算

湛宋滢406365÷2点五简算 -
柴闹卢17034281551 ______ 65÷2.5 =65÷(5*0.5) =65÷5÷0.5 =13÷0.5 =26

湛宋滢4063...能简便的要简便快来救救我吧!4/9 X 7/11X 27X 44 28X(5/18 ÷ 35/27) 99X3/5 (5/6 - 4/3)÷5/12 4/5+3/8X4/3 - 3/10 (1 - 4/5X 1/12)÷1/3 (4/3+2/3+1/6)÷1/24 3.2X1.... -
柴闹卢17034281551 ______[答案] 4/9X27X{7/11X44} 28X3/7 100X3/5-3/5 12/5X5/6-4/3X12/5 =12X28 =12 =60-3/5 =2-3.2 =336 =59.4 =-1.2 4/5+1/2-3-10 3-0.2 32+16+4 0.8X1.25X{4X2.5} =0.8+0.2-0.3 =2.8 =52 =1X10 =0.7 =10

湛宋滢40632.5x3.2x1.25简算 -
柴闹卢17034281551 ______ 2.5x3.2x1.25 =2.5x4*0.8x1.25 =10*1 =10

湛宋滢4063怎样简便怎样算3.2x1.25x25 -
柴闹卢17034281551 ______ 1.25✘0.8✘25✘4=100

湛宋滢40633.2x12.5x2.5的筒便方法 -
柴闹卢17034281551 ______ 3.2x12.5x2.5 =(0.8*12.5)*(4*2.5) =10*10 =100

湛宋滢40630.32x1.25x25的递等式 -
柴闹卢17034281551 ______ 0.32*1.25*25 =1.25*0.8*25*0.4 =10*10 =100

湛宋滢40633点2乘1点25脱式计算能简算的要简 -
柴闹卢17034281551 ______ 3.2x1.25 解:简便计算 =(8x0.4)x1.25 =8x1.25x0.4 =10x0.4 =4 祝学习进步.

湛宋滢40633.2*1.25+0.32÷4有没有简便算法?有的话请写出来,谢谢! -
柴闹卢17034281551 ______ 3.2*1.25+0.32÷4=3.2*1.25+3.2÷40=3.2*50/40+3.2*1/40=3.2*(50/40+1/40)=3.2*51/40=4.08

湛宋滢40630.32X2.5X1.25用简便方法怎样什算? -
柴闹卢17034281551 ______ =0.04*8*2.5*1.25 =0.04*2.5*8*1.25 =0.1*10 =1

湛宋滢40633.2*1.25*2.5+7.5脱式简便计算 -
柴闹卢17034281551 ______ 3.2*1.25*2.5+7.5 =(0.8*1.25)* (4*2.5)+7.5 =1*10+7.5 =17.5