下面各题怎样简便就怎样算。
|
| (1)原式= 472+(66+134) =672 | (2)原式=324+(75+25)+(54+46) =524 |
| (3)原式=283+17+(36+64) = 400 | (4)原式= 412+1588+3450 =5450 |
| (5)原式=125+75+(26+74) =300 | (6)原式=300+863 =1163 |
编辑:chaxungu时间:2026-04-27 13:19:15分类:小学数学题库
下面各题怎样简便就怎样算。
|
| (1)原式= 472+(66+134) =672 | (2)原式=324+(75+25)+(54+46) =524 |
| (3)原式=283+17+(36+64) = 400 | (4)原式= 412+1588+3450 =5450 |
| (5)原式=125+75+(26+74) =300 | (6)原式=300+863 =1163 |