(2-0.75+56*0.25)*25简便运算,急!

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(2-0.75+56*0.25)*25简便运算,急!
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(2-0.75+56*0.25)*25简便运算,急!
(2-0.75+56*0.25)*25简便运算,急!

(2-0.75+56*0.25)*25简便运算,急!
(2-0.75+56*0.25)*25
=【1.25+14*(4*0.25)】*25
=【1.25+14】*25
=15.25*25
=381.25

(2-0.75+56*0.25)*25
=(8*0.25-3*0.25+56*0.25)*25
=(8-3+56)*0.25*25
=15.25*25
=381.25