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( 280@x3)x4怎么写脱式计算

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

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

(470十35x3)÷23=脱式计算 (470+35×3)÷23 =(470+105)÷23 =575÷23 =25. 请采纳,谢谢.

脱式计算就是要求按题中的运算顺序一步一步的计算: 7.8÷(32x3/8÷36) =7.8÷(12÷36) =7.8÷(1/3) =7.8x3 =23.4。

简单

原式=0.25*4*0.8*1.25=1*1=1

(⊙o⊙)…

220-(45X3-60) =220-135+60 =280-135 =145

(845一15x3)÷16 =(845-45)÷16 =800÷16 =50

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

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