题目内容
口算．
(1)4.8
÷2.4=(2)3.2
×100=(3)7.5
＋2.5=(4)4.2
÷10=
答案：2;320;10;0.42
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口算．
1÷ = | 4.8÷2.4= | 9600÷30= | 84%÷4= |
| 52×0.4= | 21.7÷0.7= |  - = |  + = |
| b×0= | 0.73×99+0.73= | 84÷0.7= | 2+1÷3= |
题目内容
口算．
(1)4.8
÷2.4=(2)3.2
×100=(3)7.5
＋2.5=(4)4.2
÷10=口算．
| 1÷= | 4.8÷2.4= | 9600÷30= | 84%÷4= |
| 52×0.4= | 21.7÷0.7= | -= | += |
| b×0= | 0.73×99+0.73= | 84÷0.7= | 2+1÷3= |