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0.25x1.38x4用脱式计算该怎么算?

0.25x1.38x4 =(0.25x4)x1.38 =1x1.38 =1.38

0.75x4➗0.75x4用脱式计 =(0.75÷0.75)×(4×4) =1×16 =16

250x17x4 =250x4x17 =1000x17 =17000

2.5x45x0.4 =2.5x0.4x45 =1x45 =45

75x4x25x4 =(75x4)x(25x4) =300x100 =30000

25*33*4 =5*5*33*4 =5*4*5*33 =20*5*33 =100*33 =3300

15成4 乘 25乘2 之后等于 60乘50 最后等于3000

168÷4+20×4 =42+80 =112

0.125x0.25x8x4 =(0.125x8)x(0.25x4) =1x1 =1

0.75×4+0.75×4=6 ~回答完毕~ ~\(^o^)/~祝学习进步~~~

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