5.5乘8加4.5除以0.125怎样用简便计算

问题描述:

5.5乘8加4.5除以0.125怎样用简便计算

5.5*8+4.5/0.125=5.5*8+4.5/(1/8)=5.5*8+4.5*8=(5.5+4.5)*8=10*8=80

5.5*8+4.5/0.125
=5.5*8+4.5*8
=8*(5.5+4.5)
=8*10
=80

5.5×8+4.5÷0.125
=5.5×8+4.5×8
=(5.5+4.5)×8
=10×8
=80