12.5x(0.7x0.8) 怎样简便运算?

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12.5x(0.7x0.8)怎样简便运算?12.5x(0.7x0.8)怎样简便运算?12.5x(0.7x0.8)怎样简便运算?12.5x(0.7x0.8)=12.5*0.8*0.7=10*0.7=71

12.5x(0.7x0.8) 怎样简便运算?
12.5x(0.7x0.8) 怎样简便运算?

12.5x(0.7x0.8) 怎样简便运算?
12.5x(0.7x0.8)
=12.5*0.8*0.7
=10*0.7
=7

12.5x(0.7x0.8)
=12.5*0.8*0.7
=125*8*0.01*0.7
=1000*0.01*0.7
=7

12.5*(0.7*0.8)
=12.5*0.8*0.7
=10*0.7
=7