用简便方法计算。
|
| (1)原式=823-323-27 =500-27 = 473 | (2)原式=6300+600-2 =69000-2 =6898 | (3)原式=125×8×25×4 =1000×100 =100000 |
| (4)原式=(718+282)×94 =1000×94 =94000 | (5)原式=15.407-5.407+8.92 =10+8.92 =18.92 | (6)原式=23.56-3.56-0.37 =20-0.37 =19.63 |
编辑:chaxungu时间:2026-04-27 13:19:15分类:小学数学题库
用简便方法计算。
|
| (1)原式=823-323-27 =500-27 = 473 | (2)原式=6300+600-2 =69000-2 =6898 | (3)原式=125×8×25×4 =1000×100 =100000 |
| (4)原式=(718+282)×94 =1000×94 =94000 | (5)原式=15.407-5.407+8.92 =10+8.92 =18.92 | (6)原式=23.56-3.56-0.37 =20-0.37 =19.63 |