| 在横线上填上适当的数. 216+35+84=35+(________+________) | 74×99+74=________×(________+________) | 25×16=(25×________)×________ |
| 44×25=4×________×________ | ________×(________+________)=44×6+6×56 | 25×36=________×________×________. |
求未知数x
| 2X+0.1=1 |
| 在横线上填上适当的数. 216+35+84=35+(________+________) | 74×99+74=________×(________+________) | 25×16=(25×________)×________ |
| 44×25=4×________×________ | ________×(________+________)=44×6+6×56 | 25×36=________×________×________. |
| 2X+0.1=1 |