递等式计算:3.78+(3.78*2+3.78*2)*25

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递等式计算:3.78+(3.78*2+3.78*2)*25

=3.78+3.78*2*2*25
=3.78+3.78*100
==3.78+378
=381.78

3.78+(3.78*2+3.78*2)*25
=3.78+3.78*(2+2)*25
=3.78*3.78*100
=3.78*(100+1)
=3.78*101
=381.78

3.78+(3.78×2+3.78×2)×25
=3.78+3.78×4×25
=3.78+378
=381.78