列式计算:
7.2+18.98= 50.5-1.83= 1.25×3.2=
0.25×17.3×4 4.23×99+4.23 (8+0.8)×1.25
7.5÷1.5= | 7.8×0.2= | 0.4y+0.6y= | 0.4-0.4÷2= |
| 4.5×99+4.5= | 6×0.5÷6×0.5= |
0.125×64×0.25 ×101-0.75 ×33+87.5%+0.875
3.8×99+3.8 2.8+4.36+5.64 [×(-)]÷
45×0= | 650-0= | 0+990= | 58+0÷26= |
220+298= | 740-231= | 5400÷27= | 25×16×4= |
940-680 | 200×25= | 1000×0.01= | 3000÷25÷4= |
x | 1 | 0.2 |
3 | 3 | 0.6 |
0.7 | 0.7 | 0.14 |
× | 2 | 0.3 |
4 | 8 | |
0.4 |
8+( )+( )=( )+( )。