怎么样用简便方法计算

1+4× 610+59× 61通过如下简单方法计算:

61+4×610+59×61

=1×61+59×61+4×610

=(1+59)×61+4×610

=60×61+4×610

=60×61+4×10×61

=60×61+40×61

=(60+40)×61

=100×61

=6100