(完整word版)小学五年级20套分数口算练习题
戊戌变法和明治维新-辞呈
练习题(一) 
 
一、口算 
 
222222222
+ =        ÷ =          × =          - =         1
+ =   
55
 
 
1
2
+
1
3
=       
 
二、脱式计算 
3
4
 +
11
15
 -
4
 
 
 
三、解方程 
 
7
10
 - X
- 
1
8
 = 
1
5
 
 
 
 
 
 
5
6
 + X =
11
9
 - 
2
3
X - 
 
 
 
 
 
55
1
2
÷
1
3
=       
511
12
+
15
 -
6
55
1
2
× 
1
3
=
3
5
 -
1
15
 +
1
20
5
9
 + 
2
3
 - X =
2
5
                  X +
385
7
 = 
21
 + 
14
555
1
2
- 
1
3
=
71
9
+ 
3
=   
431837
15
+
8
 -
15
      
9
 +
8
+
8
23
9
 + 
8
 = 
3
4
     
   
练习题(二) 
一、口算
7511977
3
 +  =          
7 ×  =
-  =          
1.6 ÷ 0.7 = 
         -  =
14
9988312
 
8542
311
 +  =
 ÷ 6 =     
         -  =         
  ×
0.15 =          1÷3× = 
156
7
 
二、解方程
 
28
7
×X=
21
15
 
 
 
 
 
 2X +
2
5
 = 
3
5
 
 
 
三、简算
(1)(
8
+
4
9
 
27
 )×3 ×9
  
 
 
 
 
(4)
5551
6
 ×
9
 + 
9
 ×
6
    
 
 
 
2135
3
÷X=
5
6
X
3
4
 x=
15
16
 
 
(2)(
33
 
6
8
 - 
8
)×
15
      
(5)
2353
9
×
4
 +
27
 × 
4
  
3
×
9
10
=24×
1
8
 (3) 
12
6
 ×(7 - 
3
 )
    
练习题(三) 
一、口算
9713114674
92
 -  =           +  =
+  =           -  =         
×
2
113
9173311111
×
÷
         
÷
       
÷
-
 
0111011
 
二、列式计算
25
9
 ÷ 
54
4
 ÷ 
5
 
 
 
 
 
22÷
113
12
÷
4
 
 
 
 
三、解方程 
 
15
4
- X = 
137
6
 - 
8
X - 
 
 
 
 
13115
4
 -
6
 = 
12
 + X                  
 
 
 
(
5
9
 -
1
2
×
1
3
 )÷ 
5
6
3
8
×
515
6
÷
16
11
15
 + 
11
20
 =
11
10
                 
13
6
 -
11
9
 = 
25
12
 - X 
9
14
×14×
2
9
4
5
 - 
44
9
 = 
3
 - X
练习题(四) 
一、口算 
3
151813131
÷
=         ÷=         ÷ =         ÷=       × =
10
584213721721
1514
 ×12=
8×1.25=        99×17=         1÷0.25=        14÷ =
165
 
二、脱式计算 
4
15
+
13
6
 +
5
         
 
 
 
 
16×
3
2
8
÷
7
 
 
 
 
 
二、解方程
X×
31
5
=20×
4
 
 
5X-3×
5
5
21
=
7
 
 
 
7
20
 +
31311
4
-
4
          
8
 +
6
-
4
8
15
÷3×
5
6
    
5
4
 ×8+8×
1
4
X-
3
8
X=400
2
3
X÷
1
4
=12
2
9
 +
1
15
 +
4
15
5
7
 ÷
5
6
           
8116
9
 X =
6
×
51
5
12
 +
3
5
-
1
6
       
5
6
×(18+
6
25
 )     
  
  
练习题(五) 
一、口算 
82372
÷4=
1÷ =         ÷3=         14÷ =          ÷0.4=
95
3155
 
5
÷=         ÷ =
× =        ÷ =          ÷= 
77
8
16
二、简便算 
 
6
×
762
13
5
 - 
13
 × 
5
            
 
 
 
 
37× 
3
35
 
 
 
 
三、解方程式 
1.4×8-2x=6
3(x+0.5)=21                  
 
523
 
7
6 - 
5
12
×
12
 × 6     
 
6
25
  × 24
6x-12.8×3=0.06       
0.5x+8=43
9
1616
  
33433
8
 +
8
×
7
 +
8
 ×
7
           
410-3x=170 
   
  
   
练习题(六) 
3695691112423
 + +
+ +            + +            + -
101110
1
3
 +
1
6
+
5
12
                
51
12
+
4
 -
3
4
374
5
 +
8
 +
5
8
9
 +
13
15
 -
8
121111
 
 
 
293
9
+
10
 -
10
            
 
 
2
3
 +
96
11
 -
11
 
 
 
38
8
 +
9
-
2
9
          
 
 
 
134
6
 +
5
 -
15
 
3203
8
9
 +
1
15
-
2
9
        
13
3
 +
4
-
1
4
         
194
15
+
10
 +
15
        
1
15
+
117
20
 -
20
595
3
8
 +
1
20
-
1
4
  
29
9
 +
11
-
6
11
  
271
9
 +
20
+
20
  
3
10
 +
13
4
+
4
  
 
 
 
 
 
 
 
 
 
练习题(七) 
151218123
5X+X=        n + n=       - =
m- m=    + = 
5843293714
 
 
71117855158
÷=         + =      ÷ =     ÷=
× = 
64
2
-
1
4
-
3
4
=
3
13
+
1
13
=
3
13
+
1
13
=
2
5
  ×  
1
3
2
9
  ×  
2
7
92
11
×
3
14226318
 
4
7
+ 
3
14
=
56
6
÷ 
5
=   
3
13
 ÷ 
1
13
=
4
5
÷
1
5
=  
 
练习题(八)
 
 
31
13
 ÷ 
13
=
4
5
÷
1
5
=    
3
7
×
1
2
91
10
×
6
17
12
÷
5
6
11
11
÷
5
9173
14
×
2
13
÷
26
84
4
5
-
1
5
=      
4
5
+
1
5
=
4
5
+
1
5
=     
2
8
×
5
8
 
35
10
÷
6
  
31
8
÷
10
85
3
13
-
1
13
=   
7
6
×
1
4
= 
71
6
×
4
= 
5
12
×
1
4
 
11
7
÷
9
 
11
10
÷
11
 
 
  
 
     
     
 
 
 
 
 
     
 
 
     
 
      
 
 
练习题(九)
5×3-x÷2=8              0.273÷x=0.35
1.8x=0.972          x÷0.756=90 
9x-40=5
x÷5+9=21              48-27+5x=31
10.5+x+21=56 
x+2x+18=78
4(x-5.6)=1.6           
5.6x=33.6
 
 
 (200-x)÷5=30
7(6.5+x)=87.5         
 9.8-x=3.8
 (x-140)÷70=4    
(27.5-3.5)÷x=4
75.6÷x=12.6     
0.1(x+6)=3.3×0.4 
x+19.8=25.8 
   5x+12.5=32.3 
   
    
练习题(十) 
简便运算 
1531
 ×
+  × -         ×101-          × — ×          × 99
+         
214214
 
 
 
 
 
( 
4
7
 + 
8
9
 )×7 ×9
3
18
5
  
   
 
 
 
26
2
 × 
1
3
5
32
 
 
 
 
5545
9
12
9
12
 
 
 
 
 
2
29
×(15×
29
31
 )   
 
 
 
41010999
4
5
 ×25
36×
34
35
25
5
 ×
6
1
1
10
2
1
5
3343
8
 - 
8
×
7
 - 
8
 ×
3
7
63
37
62
            
5
8
 ×
283
3
 ×
15
25
4
 ×4             54
955
5
6
- 
5
9
 )×
3
5
<
br>20
5
6
              <
br>1
3
÷
6
7
+
2
3
÷
6<
br>7
        
×(
8
9
 -
5
6
 ) 
             ( 
   
 
 
 
练习题(十一) 
92
371953
×14×      
3
          
1
81
           
85
1515147
149
 
 
 
 
22÷
113
12
÷
4
        
 
 
 
 
 
 
5
12
+
7
8
 -
3
8
         
 
  
 
 
 
 
384
8
-
15
 -
15
         
 
 
 
 
 
 
3
8
×
5
6
÷
15
16
16
1
6
 +
25
9
 +
12
111
20
 -
15
 +
7
20
×
3
2
8
÷
7
2
3
 +
9
11
 -
1
3
131
6
 +
5
 -
5
        
8
15
÷3×
5
6
3
4
 -
1
3
 +
1
6
3
1
4
5
 +
1
2
1
3
 +
3
4
 -
1
6
9
10
 -
21
9
 +
20
97
10
 - 
8
 + 
5
8
 
 
 
练习题(十二) 
一、解方程 
3x+7=28              3x-3=1           7x+8=15
2x+9=17       3x-7=26 
二、填入 >、 <、= 
5
4 ○ 
5
     9×
22313
6
×
6
   
3
 ○ 
3
 ×9
8
 × 
2
 ○ 
8
 
5
6
 ÷
2
3
 ○ 
5
6
4÷
8
9
 ○ 4           
9
14
÷
3
2
 ○ 
9
14
  
12×
9
     
4348
20
 ○ 12
7
 ÷
8
 ○ 
7
 ×
3
 
 
三、口算 
 
8
9
÷4=
1÷
2
3
 =       
37
5
÷3=
14÷ 
15
=
 
 
 
 
 
4
÷3 ○
4
5
 
5
      
7
15
 ÷
17
15
 ○
15
    
5
 ×
55
122
 ○
12
  
     
2
5
÷0.4= 
    
  
   
练习题(十三) 
一、口算
 
5
÷=       ÷ =       × =       ÷ =
÷= 
8
1677523
9
1616
 
二、列式计算
3
4
÷
7
8
÷
15
14
 
 
 
 
 
14
15
21
        
 
 
 
 
 
9
14
1
5
7
 
 
 
 
 
 
9
14
×14×
2
9
     22
  
 
 
          
 
(
4
9
+
22
15
)÷
15
      
1
1
3
3
1
6
1
5
        
81
3
5
             
85
15
÷3×
6
÷
11
3
5
12
÷
3
4
8
×
15
6
÷
16
    16
5
6
3
10
          
3
8
3
×
3
2
8
÷
7
    
12
1
2
71
15
15
 
              
                
练习题(十四) 
一、解方程式 
123
21
32
 ÷X=            X+X=42
X-21×=4   
510
 
 
 
x
1
4
x20
          
 
 
 
     4X-6×
2
3
=2
 
 
 
 
X+
3
8
X=121         
 
 
 
二、 口算 
 
5
7
3
4
=
 
515
7
2
=
    
32
103
x
1
4
x105
X+
7
8
X=
3
4
2132
3
5
 X--
3
 X=
10
X- 
7
 X=
4
  
1
2
x
 +
1
415
6
x
 = 4
X÷
5
=
28
7
9
9
7
=
6493
5
3
=
10
2
=
 
8
9
35592
4
=
6
1=
6
10
5
   
 
练习题(十五) 
一、直接写出得数 
19
20
15
38
=
19
53
 ×0=        
 
二、脱式计算
5
8
16
7
14
11
 
 
 
 
 
 
545
8
3
+
8
3
4
 
 
 
 
 
1
 -
1
=
63
7
56
 
9
=
17
15
×60=         
8
7
8
=
      
3524
8
6
35
      
57
8
 ÷ 
7
12
 ÷
10
           
1.8×
1
6
=
1
4
3
5
=
19
26
38
55
5
11
1
2
 ÷ 
52
4
 × 
3
4
 ×1=       
11
72
 +
7
 =
3
4
÷
3
4
=      10÷10%=   
12
33
5
25
6÷
3
10
-
3
10
÷6
            
 
                  
33
3
1
3
5
×÷(-)
 ×4÷ ×4
 
3
44
12
 
 
 
 
 
一、解方程 
5(x+8)=102
x+3x+10=70                  3(x+3)=50-x+3 
5x+15=60              3.5-5x=2
0.3
二、看谁算得又对又快
4
5
1
2
4
5
 
 
 
 
 
1
6
2
3
1
8
 
88
练习题(十六) 
×7+4x=12.5
x÷1.5-1.25=0.75 
  
150144
5
6
3
89
73
15
16
10
4
5
3
4
1
3
1
6
6756437
11
8
12
11<
br>             
15
5
9
  
 
 
 
 
 
65
            
()24
(+)24
            
(1-)4
84977128568
 
 
 
练习题(十七)
一、直接写出得数 
 
1
4
÷ 
4
5
=
6
7
÷6=
(3+
3
7
4
20
 
)×5=
11
×1
7
=
 
2
9
×2.7÷
60%=       9
-
7
8
÷
1
8
=
5379
7
4
=
9
7
=
 
 
8
9
3
4
=
9
10
3
2
=
51564
7
2
=
5
3
=
 
 
 
二、看谁算得又对又快
 
4
5
1
2
4
5
150144
589
6
3
15
16
    
 
 
 
 
 
 
76
÷7+
6
7
=
 
19
20
15
38
=
 
715
5
×
7
= 
     
1 
           
      
       
1
21311
73
5
                
104
 
 
 
 
一、解方程式
 
x
-
2
5
x
=14
 
 
 
 
3
5
x
+
2
5
= 5
 
 
 
 
 
 
二、列式计算 
 
6
11
7
8
5
12
611
     
638436
练习题(十八) 
   
3
5
+
1
4
x
=
17
20
7-
2
3
=2
x
x
 -
5
8
x =
1
3
× 45
   
4
15
3
5
7111864<
br>9
8
49
7
7
1
2
x
-
1
3
x
= 5 
(7
12
1
8
)24
2
5
  
          
 
 
 
 
 
5765815757
(+)24
(1-)4
           
9+
+3
 
68
 
 
 
 
 
 
121
7
(
79
3
15
+
10
)
         
 
 
 
 
 
 
一、直接写出得数
5
12
×
9
10
=          
22
39
×
26
11
=         
 
35
10
 ÷ 
6
 =
 
34
17
10
=                
 
180
9
10
=              
二、列式计算 
 
7613913
7
8
÷5+
7
1553
8
 ÷2
2-
16
÷
7
÷
4
练习题(十九) 
33
13
÷22=
34×
7
51
=
8÷
12
13
=
3
4
 ×1.2=
13
1165
7
 ÷26 =
13
121
=
1
3
1125
7
=
15
44
=
7
11
14
= 
10310
9
20
÷[
1
2
 ×(
2
5
 +
4
5
)] 
25÷
15
16
=        
53
8
 ×1
5
 =
18
19
38
27
=
2513
39
50
=        
 
      
3
1
7
8
7
11219
×(+)÷                   ×+÷
5
4
5
10
 
 
 
一、直接写出得数 
 
2
5
 ×
42
15
=        8÷
3
 = 
 
二、列式计算 
1-
283
13
 ÷
13
 -
4
 
 
 
 
 
 
三、简便运算
25
11
25
3
练习题(二十) 
9
10
 ÷
3
5
 =
1÷
7
10
 = 
2143816
9
+
2
 ÷
5
 +
8
        
13
÷7+
7
 ×
13
9
12
÷
2
3
=   
 
(
55
8
6
)
4
25
            
1
31
1
54
1
1
1
333
×3        (25+)÷+
     (+)×30
× 58+× 41+
3
四、解方程 
(
42
5
 +3.2)
x
=
3
 
1
6
x
21
3
6
0.2
 
 
 
44
4
6
3
5
x
-
1
7
 = 1
2
x
-2.6×5=8
5
8
x
-3.25=0.75
2
3
x
1
6
x15
8
8
1
3
3
10
x
1
2
2x30%x9.2