四年級下冊小數簡便計算

1、精選優(yōu)質文檔-傾情為你奉上一、列豎式計算。  4.8-2.8       1.3+2.5       3.1+2.22       26.2-13.1       12.3+11.2       35.82-13.3   

2、;     3.7+2.36      15.4+2.97    11.65-7.39      10-8.75    5.94+10.7      9.82-6.18      4.8×0.25     &#

3、160;  0.32×0.8       9.8×0.5     4.8×1.2        0.32×1.2        9.8×1.03       0.12×50     

4、;  2.6×0.5       1.3×2.2       9.6×0.8      5.04×28      3.82×0.45      0.96×6.9    3.8

5、15;4        48×0.15        0.125×8      1.8×0.85        0.86×1.2    12×0.16      3.5&

6、#215;1.2        2.7+3.6         3.25-1.14       0.3×4    9.6-1.64        8×1.57       

7、;62.4+7.62 6.7×2.4        3.05×1.4 4.8-2.8       1.3+2.5       3.1+2.22       26.2-13.1       12.3+11.2&#

8、160;      35.82-13.3        3.7+2.36      15.4+2.97    11.65-7.39     10-8.75    5.94+10.7     9.82-6.18  

9、0;   4.8×0.25       0.32×0.8      9.8×0.5    4.8×1.2        0.32×1.2       9.8×1.03   

10、;   0.12×50      2.6×0.5       1.3×2.2       9.6×0.8      5.04×28      3.82×0.45   &#

11、160;  0.96×6.9    3.8×4       48×0.15        0.125×8      1.8×0.85        0.86×1.2   

12、 12×0.16      3.5×1.2        2.7+3.6         3.25-1.14       0.3×4    9.6-1.64       

13、8×1.57       62.4+7.62       6.7×2.4       3.05×1.4二、脫式計算，用你喜歡的方法計算（能簡便的要簡便）。  4.6-1.75+2.08     7.41-(2.96+3.04)      &

14、#160;3.2+1.27-2.49    5-(4.19-2.83)       4.28+0.53-3.37      1.54+2.08+3.62      2.8×5+7.2×5     2.5×13+0.9    2.6+1.4×3 

15、60;   0.25×3.7×0.4     0.89×4.8+0.89×5.2    1.83+3.79+0.17    10-0.34-0.66      2.5×0.6-1.8×0.5     (8+0.8) ×1.25     (1

16、5.4-7.8) ×3.5    4.15+3.24+9.85+6.76   3.2×4.6+3.2×5.4      12.8+2.04×9.5    4.5×3.6+5.2×0.35   6.15×9.4-42    4.5×0.9+5.5×0.9    

17、(7.5+2.5) ×0.25    2.25+1.25×0.18    7.8+4.56+2.2    0.65×6.4-0.65×5.4    1.3+4.7×0.9    5.01-1.9+4.99     0.4×99+0.4    7.5-7.5×0.8 &#

18、160;      101×4.8-4.8三、解下列方程。  x-19=2       x-12.3=3.8        6x=156       3x=630       x-47=47    59+x=1

19、20      x÷52= 7 x÷28=0       3x+6=15        4x-2=26       8+x=20        3x+4=34      

20、 2x+5=55        2x+20=50     3x+20=50    X+23.5=45      4x+9=249       36+2x=48     m÷0.6=0.45      4x=36    2.5+x=10       x-18=40     3x