| 口算. 72-40= | 30÷5= | 4×5= | 12+29= |
| 4÷1= | 6÷6= | 35+48= | 5×3= |
| 38÷4= | 3×0= | 32+20= | 72-8= |
| 20÷4= | 6×7= | 34÷6= | 6×6= |
| 18÷3= | 24-6= | 6+45= | 40+27= |
| 28÷4= | 8×1= | 40÷8= | 8×3= |
| 91-9= | 7+73= | 32÷6= | 31-24= |
| 28-7= | 5÷8= | 16-8+24= | 100-49+10= |
| ________×________=12 | ________÷________=1. |
| 口算. 72-40= | 30÷5= | 4×5= | 12+29= |
| 4÷1= | 6÷6= | 35+48= | 5×3= |
| 38÷4= | 3×0= | 32+20= | 72-8= |
| 20÷4= | 6×7= | 34÷6= | 6×6= |
| 18÷3= | 24-6= | 6+45= | 40+27= |
| 28÷4= | 8×1= | 40÷8= | 8×3= |
| 91-9= | 7+73= | 32÷6= | 31-24= |
| 28-7= | 5÷8= | 16-8+24= | 100-49+10= |
| ________×________=12 | ________÷________=1. |