简便运算:75*4.67+17.9*2.5

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简便运算:75*4.67+17.9*2.5
x){ɾ/Oxn=ML̵ ,Lm /!Τ?no=52=

简便运算:75*4.67+17.9*2.5
简便运算:75*4.67+17.9*2.5

简便运算:75*4.67+17.9*2.5
解】原式=25×14.01十25×1.79
=25×15.8
=1580÷4=395

75*4.67+17.9*2.5
=2.5*140.1+17.9*2.5
=2.5*(140.1+17.9)
=2.5*158
=158÷0.4
=395