直接写得数.
| 17×3= | 4×23= | 190×2= | 210÷7= | 730+68= |
| 865-60= | 240×3= | 19×5= | 2×380= | 6×14= |
看谁算的又对又快.
| 3.4+0.34= | 0.12+13= | 56-2.3= | 20000-511= | 7.12+16= | 1.3+38= |
| 17×3= | 4×23= | 190×2= | 210÷7= | 730+68= |
| 865-60= | 240×3= | 19×5= | 2×380= | 6×14= |
| 3.4+0.34= | 0.12+13= | 56-2.3= | 20000-511= | 7.12+16= | 1.3+38= |