怎样算简便就怎样算。
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| (1)原式=36×(125×8) =36000 | (2)原式=25×(100+2) =25×100+25×2 =2550 |
| (3)原式=(68+22)×39 =90×39 =3510 | (4)原式=33×(69+1) =33×70 =2310 |
编辑:chaxungu时间:2026-04-27 13:19:23分类:小学数学题库
怎样算简便就怎样算。
|
| (1)原式=36×(125×8) =36000 | (2)原式=25×(100+2) =25×100+25×2 =2550 |
| (3)原式=(68+22)×39 =90×39 =3510 | (4)原式=33×(69+1) =33×70 =2310 |