| 1125-997= | 998+1246+9989= | （8700+870+87）÷87= | 125×8.8= |
| 1.3+4.25+3.7+3.75= | 17.15-（3.5-2.85）= | 3.4×99+3.4= | 4.8×1.01= |
| 0.4×（2.5÷73）= | （1.6+1.6+1.6+1.6）×25 | （ + - ）÷ = |  = |
| 12.3-2.45-5.7-4.55= |  ÷2 + × = | 0.125×0.25×64= | 64.2×87+0.642×1300= |
78×36+7.8×741-7 = |  ×17+ ×8= |  × +0.125×+0.5= | 2.42÷ +4.58× -4÷3= |
25÷100 = | 4.25-3-（2 -1）= | 3.8÷3.9+3.9÷0.1+0.1÷3.9= | 12.1-（ + ）×105= |
直接写得数．
 = |  = |  = |  = |
 = |  = |  = | （- ）×30= |
，5比8少
÷3=
=
=
，-0.4，0.455…按大小排列：________＞________＞________＞________＞________＞________．
如右图，瓶底的面积与杯口的面积相等，将瓶子中的液体到入杯子中，能倒满________杯．
．
的倒数等于
．