125×5.4-4.6×125 怎么简便运算?

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125×5.4-4.6×125 怎么简便运算?

125×5.4-4.6×125 怎么简便运算?
125×5.4-4.6×125 怎么简便运算?

125×5.4-4.6×125 怎么简便运算?
125×5.4-4.6×125
=125x(5.4-4.6)
=125x0.8
=100
如果本题有什么不明白可以追问,

原式=125×(5.4-4.6)
=125×0.8
=100

=125*(5.4-4.6)=125*0.8=1

125*5.4-4.6*125
=125*4.6+125*0.8-125*4.6
=125*0.8
=100