计算下列各题,能简算的要简算。
|
| (1)原式=27×(25×4) =27×100 =2700 | (2)原式=125×8×7 =1000×7 =7000 | (3)原式=125×8-12×8 =1000-96 =904 |
| (4)原式=987-487-323 =500-323 =177 | (5)原式=(58+42)×17 =100×17 =1700 | (6)原式=826+174-(519+381) =1000-900 =100 |
编辑:chaxungu时间:2026-04-27 13:25:01分类:小学数学题库
计算下列各题,能简算的要简算。
|
| (1)原式=27×(25×4) =27×100 =2700 | (2)原式=125×8×7 =1000×7 =7000 | (3)原式=125×8-12×8 =1000-96 =904 |
| (4)原式=987-487-323 =500-323 =177 | (5)原式=(58+42)×17 =100×17 =1700 | (6)原式=826+174-(519+381) =1000-900 =100 |