1 . 计算.
(1)[(0.05+
)÷0.25-40%]×![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4195d5f8f2bc536030045927ee842fa.png)
(2)[4
-(0.5+
)÷
]×0.125
(3)6.4×1.3+1÷
+
×![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce96700482d3a84220ac49de3799c019.png)
(4)7.4×
+125%×2.5+
÷10
(1)[(0.05+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10402e4ddd0d323cc1ae83801ae976db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4195d5f8f2bc536030045927ee842fa.png)
(2)[4
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb84f6fbac102ccf326b2223d69cb7cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329783d9514615151194b127ca8e71ba.png)
(3)6.4×1.3+1÷
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35019336e62de7156a8160f1d544ed81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d18f6c7cdcedba9c7408da6193588f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce96700482d3a84220ac49de3799c019.png)
(4)7.4×
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effe2fa26816d2d1aa79a51f7f243e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effe2fa26816d2d1aa79a51f7f243e1e.png)
您最近一年使用:0次
2 . 用简便方法计算下面各题.
7.4×0.28+0.28×2.6 0.94×2.5+0.094×75 4.8×9+4.8 1.25×32
7.4×0.28+0.28×2.6 0.94×2.5+0.094×75 4.8×9+4.8 1.25×32
您最近一年使用:0次
3 . 用简便方法计算.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbcb39c14077d33f29472fa1d16e14e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e1c296bd9ac68d560ad98c3db9a9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bfcc6cfb97650ac093d4cb771631a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6bf72a27330d905edd39aac76d8cec.png)
您最近一年使用:0次
4 . 用简便方法计算.
(
)×12
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6c590253e941b9e83ccc47e43f1beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2296fd1dcc24794eba372acdb340b36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a712c9dc5425e2fc6537d351ccbc63eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea0783e8d49f54fec543e5a2fa2c094.png)
您最近一年使用:0次