0.41÷0.125+9.58×8
=0.41×8+9.58×8
=(0.41+9.58)×8
=10×8
=80
注意0.125x8=1,所以他们是倒数关系,除以0.125就是乘以8
0.41÷0.125+9.58×8
=0.41÷1/8+9.58×8
=0.41×8+9.58×8
=8×(0.41+9.58)
=8×9.99
=8×(10-0.01)
=80-0.08
=79.92
0.125=1/8
原式化简
=0.41*8+9.58*8
=9.99*8
=10*8-0.01*8
=80-0.08
=79.92