11*8.75+125*0.19怎样简便计算要飞快,慢了不要.

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11*8.75+125*0.19怎样简便计算要飞快,慢了不要.

11*8.75+125*0.19怎样简便计算要飞快,慢了不要.
11*8.75+125*0.19怎样简便计算
要飞快,慢了不要.

11*8.75+125*0.19怎样简便计算要飞快,慢了不要.
11*8.75+125*0.19
=11*1.25*7+1.25*19
=77*1.25+1.25*19
=1.25*(77+19)
=1.25*96
=1.25*8*12
=120

11*8.75+125*0.19
=11*125*0.07+125*0.19
=125*(0.77+0.19)
=125*0.96
=125*(1-0.04)
=125-5
=120