简便运算。
|
| (1)原式=175+25+(364+136) =200+500 =7 | (2)原式=(125×8)×6 =1000×6 =6000 |
| (3)原式=78×(12+88) =78×100 =7800 | (4)原式=103×45 =(100+3)×45 = 4635 |
编辑:chaxungu时间:2026-04-27 13:19:42分类:小学数学题库
简便运算。
|
| (1)原式=175+25+(364+136) =200+500 =7 | (2)原式=(125×8)×6 =1000×6 =6000 |
| (3)原式=78×(12+88) =78×100 =7800 | (4)原式=103×45 =(100+3)×45 = 4635 |