2.76+0.209+5.24                          4.35+5.713+1.287+2.65

5.38-1.64-0.36                                      2.75+1.58-0.48+3.25

6.8—2.5×0.26                                      27.36÷24×3.5

330÷0.6÷5                     4.75×99+4.75

62.28÷（10.2—6.6）        25.6÷0.064—78.5

8.1÷4.5                     7.7÷3.5

3.6×201—3.6               65.5÷15—5.5÷15

9.08—7.56+0.058            6.57+0.385+3.43+0.615

9.6÷1.5×8.06                  3.84×99÷3.84  

30.87÷（10.26—5.36）         （6.1—5.98）×38.6 

25.36—1.82÷0.7                 7.8×2.06+2.06×2.2 

6.2×[（3.2+4.06）÷6.05]           6.92×101—6.92 

15.2÷32×（6.5—2.7）            11.25÷[0.9×（1.38—0.88）] 

6—0.375—1.625                3.52+7.66+1.48+2.34 

125×4.9×0.08                 6.5×10.1 

4.2÷35                         4.28×7.5+7.5×5.72 

46.48÷8.3×3.8—15.05         （3.85+9.56）÷（0.75—0.5） 

2.3×[12—（9—6.54）]           0.125×3.2×2.5 

3.86×101—3.86                 6.552÷[0.52×（3.672—2.172）] 

25.36—1.82÷0.7                 7.8×2.06+2.06×2.2  

6.2×[（3.2+4.06）÷6.05]         6.92×101—6.92 

15.2÷32×（6.5—2.7）         11.25÷[0.9×（1.38—0.88）]

6—0.375—1.625                3.52+7.66+1.48+2.34  

125×4.9×0.08                   65×10.1 

4.2÷35                        4.28×7.5+7.5×5.72 

46.48÷8.3×3.8—15.05       （3.85+9.56）÷（0.75—0.5）

2.3×[12—（9—6.54）]            0.125×3.2×2.5 

3.86×101—3.863                6.552÷[0.52×（3.672—2.172）] 

18.65—2.38—3.3×1.2                （3.44+20.5×0.32）÷0.16

（58.3+25.6）÷（160×0.25）        17.85÷0.35—（12.56—9.87） 

5.04×3.63+6.37×5.04                       2.77÷[(12.58-7.63)×0.2] 

2.76×4.9+4.9×7.24                           0.125×72

5.6×1.01                                            6.3÷35

2.47+3.5×6.6                                     21.28÷7.6×2.1 

2.5×3.4×0.4                                      8.24-2.68-1.32 

6.5×3.2+6.5×6.7+6.5                         7.8÷0.25÷4

7.68+0.24+3.76                        0.215+3.88+0.785 

7.245+4.89+0.755                   1.63+2.8+0.37+1.2

7.03+4.8+2.97                         3.82+2.9+0.18+9.1  

9.6+4.8-3.6                            5.27+2.86-0.6601.63

13.35-4.68+2.65                 0.314+7.45+2.686+2.65  

7.14-0.53-2.47                    73.8-1.64-13.8-5.36

0.125×8.4×8                          6.1×5.6+3.9×5.6        

3.5×10.1                                    2.33×102-2.33×2

0.8×1.25×0.25×4                    7.2×9.9              

80-11.3-12.7                           9.25×1.6-0.6×9.25

4.6×1.8×0.5                         （ 1.25+0.125）×8     

3.5÷25                                    47.3÷0.25÷4

6.3÷1.4                                    9÷0.6÷0.3           

9.5÷（1.9×8）                     （11.7+9.9）÷0.9

12.8÷（0.4×1.6）                 6.3÷1.8             

2.76×4.9+4.9×7.24                0.125×72

5.6×1.01                                  6.3÷35         

2.47+3.5×6.6                         21.28÷7.6×2.1

2.5×3.4×0.4                            8.24-2.68-1.32        

6.5×2.3+6.5×6.7+6.5               7.8÷0.25÷4

0.59×98                                 6.4÷（0.8×1.6）      

8.27-1.35+1.37-0.65              162.5÷（4÷16×13）

10.64+7.65×2.4+11.76         9.83×（4.8-3.3）      

12.75÷[14.6-（1.3+8.2）]            13.5-13.4×0.5-4.3

9.9×4.8+0.48                           8+5.4×99+3.6        

25.3-0.5×0.7-0.65                 0.8×[（6-1.68）÷1.2] 

1.25×5.3+2.7×1.25              3.75×2+6.25÷0.5      

6.3÷4+3.7×0.25                   4.36÷（4.36×0.25） 

15.37×5.6+15.37×4.4              19.8-4.8×0.7-6.64