竖式演练场.481÷2=954÷9=
20×(+)
0.868÷(3.15-1.75)
4.13×2.3+4. 13×7.7
(1)1-0.47= (2)6.4-4=(3)0.25×12= (4)(5) (6)(7)0.88÷2.2= (8)0.08×0.5=(9) (10)72.1×1000=