(12+24+80)×50704×25简便计算

2025-03-12 15:27:13
推荐回答(1个)
回答1:

( 12 + 24 + 80 ) X 50704 X 25
= 25 X 4 X ( 3 + 6 + 20 ) X 50704
= 100 X 29 X 50704
= 5070400 X ( 30 - 1 )
= 15211 2000 - 507 0400
= 14704 1600