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( 280@x3)x4怎么写脱式计算

( 280-40x3)x4 =(280-120)×4 =160×4 =640

你好,很高兴为你解答 306x3x4=脱式计算 =918x4 =3672 满意采纳哦!

0.2x0.5=0.1 0.27-0.2=0.07 0.8x0.7=0.56 3.4x2=6.8 4.5x3=13.5 1.5x0.4=0.6 0.05x1.6=0.08 9.2-4.8=4.4 7.2=2.8=10 0.93x100=93 0.06x0.9=0.054 2.5x4=10 0.1x6.1=0.61 0.75+0.3=1.05 1.2-0.8=0.4 0.125x8=1 9.34x4=37.36 5.6x5=28 3.74-2.82=0...

24X[(762一698)]X3怎么脱式计算 24X[(762一698)]X3 =24*3*64 =72*64 =4608 直接计算

112x3x5 =56x2x5x3 =560x3 =1680

98.5一14.82÷7.6x3.2 =98.5-1.95×3.2 =98.5-6.24 =92.26

原式=0.25*4*0.8*1.25=1*1=1

15x397 =15x(400-3) =15x400-15x3 =6000-45 =5955

522÷[(56一27)x3] =522÷[29×3] =522÷87 =6

(800+200÷50)X3 =(800+4)X3 =804X3 =2412

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