简算:1/8×5+5/8×5+1/8×10

问题描述:

简算:1/8×5+5/8×5+1/8×10

1/8×5+5/8×5+1/8×10
=5×(1/8+5/8×5+1/8×2)
=5

原式=5/8(1+5+2)=5

(1/8+5/8+2/8)*5=1*5=5

原式=5*(1/8+1/8+1/4)
=5*1/2
=5/2

1/8×5+5/8×5+1/8×10
=1/8×(5+5×5+10)
=1/8×40
=5

1/8×5+5/8×5+1/8×10=1/8*(5+25+10)=1/8*40=5