新人教版小学六年级数学练习题(解方程简便运算)

一、解方程。

 3X=                    X÷=                ÷X=            

=30%                    X =                 X-0.25=       

X×=20×               50% X +  X = 3.6        25% X + 15%X =   

X - 15%X = 68              X－  X =               X＋X＝121                

X＋X=                 X +  X = 4               X+X=20

6X＋5 =13.4               4 X－6＝38                  X+=

4 X－3 ×9 = 29            5X－3×＝             4X－6×=2

0.36×5-  X =          X - 0.8 X = 16+6            ( X - 4.5) = 7  

X÷＝12               2(X-2.6)=8                 X-X=

X×( + )=          X－0.375 X =     20 X– 8.5= 1.5  

 X -  X -4= 21          4+0.7X=102                 X - 25% X = 10

二、简便运算。

（- ）×60                36×                  0.65×101

（1.25-0.125）×8             25×8                24×(---)          

(12+) ×7                  13×10.2                   2.6×99

×+×         27.5×3.7-7.5×3.7       ÷+×

×101-               × 99 +             ×-÷

×103-×2-                     0.92×1.41＋0.92×8.59   

2.25×4.8+77.5×0.48       4.8×7.8+78×0.52      1.3×11.6－1.6×1.3

×(15×)×            4.36×12.5×8             2.5×32×1.25

1.25÷×0.8                  9.6÷3.2÷3               15.2÷0.25÷4  

 ×÷×              ×3÷×3              146.5-（23+46.5）   

12.-(3.-1.6)       73.8-1.-13.8-5.36      15.75+3.59-0.59+14.25

5.48-（9.4-0.52）       12.06＋5.07＋2.94             30.34＋9.76－10.34    

二、简便运算。

（712 - 15 ）×60                   36×3435                       0.65×101

（1.25-0.125）×8             2538 ×8                24×( - - - )          

(12+ ) ×7                  13×10.2                   2.6×99             X - 45  X -4= 21 

 47 ×613 +37 ×613               27.5×3.7-7.5×3.7                0.92×1.41＋0.92×8.59   

710 ×101- 710                   35 × 99 + 35                  30.34＋9.76－10.34

 2.25×4.8+77.5×0.48            4.8×7.8+78×0.52               1.3×11.6－1.6×1.3

 227 ×(15×2728 )×215               4.36×12.5×8                  2.5×32×1.25

1.25÷ ×0.8                      9.6÷3.2÷3                      15.2÷0.25÷4  

  × ÷ ×                   12.06＋5.07＋2.94               146.5-（23+46.5）       

12.-(3.-1.6)                   73.8-1.-13.8-5.36                 15.75+3.59-0.59+14.25

5.48-（9.4-0.52）       4 X－3 ×9 = 29             5X－3× ＝               4X－6× =2

0.36×5- 34  X = 35              X - 0.8 X = 16+6               23 ( X - 4.5) = 7  

 X÷ ＝12                 2(X-2.6)=8            25 X-13 X=310           4+0.7X=102 

X×( 16 + 38 )=1312           X－0.375 X =            20 X– 8.5= 1.5        12  X - 25% X = 10

二、简便运算。

（712 - 15 ）×60                36×3435                0.65×101           35 × 99 + 35            

（1.25-0.125）×8             2538 ×8         710 ×101- 710           27.5×3.7-7.5×3.7     

(12+ ) ×7                  13×10.2                   2.6×99                  710 ×101- 710

 47 ×613 +37 ×613          0.92×1.41＋0.92×8.59      

 2.25×4.8+77.5×0.48       4.8×7.8+78×0.52     1.3×11.6－1.6×1.3

227 ×(15×2728 )×215             4.36×12.5×8          2.5×32×1.25

1.25÷ ×0.8              9.6÷3.2÷3                15.2÷0.25÷4  

  × ÷ ×              ×3÷ ×3               146.5-（23+46.5）       

12.-(3.-1.6)       73.8-1.-13.8-5.36      15.75+3.59-0.59+14.25

125×36×25              31/30×31              5.48-（9.4-0.52）          

12.06＋5.07＋2.94                             30.34＋9.76－10.34