运用乘法的运算定律计算下面各题。
|
| (1)原式=125×8-40×8 =1000-320 =680 | (2)原式=(57+23)×15 =80×15 =1200 |
| (3)原式=125×(32-24) =1000 | (4)原式=88×(100+2) =8976 |
| (5)原式=125×8×11 =1000×11 =11000 | (6)原式=9×9+9×91 =9×(9+91) =900 |
编辑:chaxungu时间:2026-04-27 13:19:48分类:小学数学题库
运用乘法的运算定律计算下面各题。
|
| (1)原式=125×8-40×8 =1000-320 =680 | (2)原式=(57+23)×15 =80×15 =1200 |
| (3)原式=125×(32-24) =1000 | (4)原式=88×(100+2) =8976 |
| (5)原式=125×8×11 =1000×11 =11000 | (6)原式=9×9+9×91 =9×(9+91) =900 |