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2.5x3.6竖式计算怎么算?

2.5*(3+0.6)=2.5 *3+2.5* 0.6=7.5+1.5=9

2.5*3.6=2.5*4*0.9=10*0.9=9

2.5*3.6 =2.5*4*0.9 =(2.5*4)*0.9 =10*0.9 =9

=2.5*4*0.9 =10*0.9 =9

2.5/3.6=25/36

计算:2.5x=64+3.6 即:2.5X=67.6 所以x=27.04 验算,把x带入方程式,然后得到64即验证成功,x值正确

2.5*3.6 =2.5*(0.4*0.9) =2.5x0.4*0.9x2.5 =1x2.25 =2.25

2.5x=64-3.6 =60.4/2.5 =24.16

先不要管小数点,直接算25X36,最后加(2位)小数点过去 2.5 X3.6----------- 150 75-------- 9.00

x÷3.6=2.5x=2.5*3.6=9

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