25×9×125×4×9用简便方法计算

2025-03-12 15:44:36
推荐回答(1个)
回答1:

25×9×125×4×9
=(25×4)×(9×9×125)
=100×(81×125)
=100×[(80+1)×125)]
=100×[(80×125)+(1×125)]
=100×(10000+125)
=100×10125
=1012500