| 先算一算,再想一想. 18×24= | 105×45= |
| (18÷2)×(24×2)= | (105×3)×(45÷3)= |
| (18×2)×(24÷2)= | (105÷5)×(45×5)= |
(18÷2)×(24×2)=432,
(18×2)×(24÷2)=432;
105×45=4725,
(105×3)×(45÷3)=4725,
(105÷5)×(45×5)=4725.
编辑:chaxungu时间:2026-04-27 13:20:28分类:小学数学题库
| 先算一算,再想一想. 18×24= | 105×45= |
| (18÷2)×(24×2)= | (105×3)×(45÷3)= |
| (18×2)×(24÷2)= | (105÷5)×(45×5)= |