简便计算：5.6*8+4.5/0.25=?7.5*【63.9/（7-2.5）】=?5.5*8+4.5/0.125=?26.19+0.91/(3.6-2.9)=?

5.6*8+4.5/0.25
=（5+0.6）*8+（4.5*4）/（0.25*4）
=5*8+0.6*8+4.5*2*2
=40+4.8+18
=62.8
7.5*[63.9/(7-2.5)]
=7.5*(0.9*71/4.5)
=7.5*(0.9*71/0.9/5)
=1.5*5*(71/5)
=1.5*71
=3/2*71
=213/2
=106.5
5.5*8+4.5/0.125
=5.5*8+4.5*8/(0.125*8)
=8*(5.5+4.5)
=80
26.19+0.91/(3.6-2.9)
=26.19+0.91/0.7
=26.19+1.3
=27.49
(这题直接口算就可以……)

5.6*8+4.5/0.25
=5.6*8+4.5/(1/4)
=5.6*8+4.5*4
=44.8+18
=62.8
7.5*【63.9/（7-2.5）】
=7.5*【63.9/（4.5）】
=7.5*【0.9*71/（0.9*5）】
=7.5*【71/5】
=15/2*71/5
=3/2*71
=1.5*71
=106.5
5.5*8+4.5/0.125
=5.5*8+4.5/(1/8)
=5.5*8+4.5*8
=8*(4.5+5.5)
=8*10
=80

5.6*8+4.5/0.25 =5.6*8+4.5/(1/4) =5.6*8+4.5*4 =44.8+18 =62.8 7.5*【63.9/（7-2.5）】 =7.5*【63.9/（4.5）】

5.6*8+4.5/0.25=(5+0.6)*8+(4+0.5)*4=5*8+0.6*8+4*4+0.5*4=40+4.8+16+2=62.8

5.6*8+4.5/0.25=5.6*8+4.5/(1/4)=5.6*8+4.5*4=44.8+18=62.87.5*【63.9/（7-2.5）】=7.5*【63.9/（4.5）】=7.5*【0.9*71/（0.9*5）】=7.5*【71/5】=15/2*71/5=3/2*71=1.5*71=106.55.5*8+4.5/0.125=5.5*8+4.5/(1/8)=5....