一年级上册

2015总决赛第六场|2015年六年级数学上册计算题专题练习题

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计算题复习题
一、化简下面的比,并求出比值。
 60∶45              0.35∶           45分钟∶1.5小时              65∶52   
   
  ∶              1.2∶0.15         0.5千米∶25米                  ∶15 

 0.8∶            1.5∶              1.5∶2.1                    14∶35

 ∶             6千米∶300米           3.75∶

 

二、能简便的用简便方法
1、(乘法分配分律运用)
 ×( - )         (13+ )×           ×12+         × + ÷

 ×11-           ×( - × )      ( + )÷        × + ×

101× -                ÷7+ ×             4 ×5 -4 ×4.375

( + + )×48         ×43+ ×36+    ( - )÷      ( + )×27

 ÷9+ ×             36×( + ― )        ×58+42÷8      ×101-  

 × + ÷15          ÷ - ÷         × + ÷8    ( + )×24 

28×( + - )            99×98+0.2×990     ÷3+ ×             (19- )÷19
 
 ×13+ ×13        ×101-       126×98 +126+63×2        

( - + )×48     ( + - )×72     ÷9+ ×       ( + - )×24      
 × ÷ ÷      1 × - ×         ×18-7× -      ÷ + ×  


 × + × +       ÷ + ×     (36 +54)÷9     24×( ― + )

(34+ )÷17          ( - )×112           ×13+ ×13       × + ÷4

( + )×9×17       9×( + )+       36×( + + )

88×125                  ×48                   125 ×8           25 ×4     

2009×            128×                87×                39×


2、(怎样简便就怎样计算。)
 ÷ ÷           ÷ 0.2×           + + +              × ×

 ×34×7×        × ÷             ÷ ÷                 ÷( + )

 - ÷          2 ×1 ×2         6 × ×1           5 ÷7×6×17

1 + ×         ×( ÷ )       35×1 ×3            1 ×5.6+
                     
3×( + )-        ÷ + ×      ( - )÷           × ÷   

( ― )―( ― )       ÷[ ×(1- )]     × ÷       4― ―

(15-15× )×        [ -0÷( + )]×          ( + )× ÷
 
(15―14× )×       ÷ ÷         ×( ― )         4×[( + )÷6]
  
(6- ×32)+        6÷ - ÷6     × ÷( - )     - - -
 
 × + ÷        ×24÷ ×     + ×        ×3.2+5.6×0.5+1.2×50%         

 [ -( + )]÷          + + +     × + ×0.75         3- -

 × × ×    12.56÷4÷3.14        -( - )     5- × -  

 (1- - )÷         11.58-(7 +1.58)      743-450÷18×25      ×(1÷ -1)

519.2÷(24.3×2-4.6)     10- ×10-       [1-( + )]÷       ÷5+5÷

2- ÷ -        -( + )    [ ―( ― × )]÷        ― ― +      

(9× - )÷       1 × +      6 -(0.63+4 )      ÷ ÷

  +1÷3.8×3 +3.5      ÷( ÷ + )        24 ×0.875-23 ÷1

(3-1.4)÷             + + + ×10              ÷[ -( + )

 ×6+4÷      +( - )÷     +( + )×          1.5× +1 ÷1  

8.8÷[7.8+ ×( +1 )]        ( - )÷ +          7× + ÷    (1- )÷(1+ )

9× ÷9×     + × -           ÷[ -( + )]                  + ×

( + )×24×           ÷ - ×            ( + × )÷

 ÷[ -( - )]                      
5( + )        ( — ) +         (4- × )÷    1.75× +3
    
3.68×[1÷(2.1-2.09)]             + + + + +


三、解方程。
 χ-12%χ=2.816       X+ X=         χ-28%χ=21.6   χ- χ=3

X- X=           χ+ χ=           χ- χ=           χ+ χ=15

 χ+ χ=26      χ- χ=12          χ+1 χ=            χ- χ=1

X- X=         χ- χ=0.54÷5        x- x=      χ-40%χ=

x+ x=                               × - χ=

17-120%χ=5       - χ=       (1+30%)χ=45.5       7 -2χ=3

χ×( + )=          +2X=          χ-1=0.9×        - χ=

 χ- ÷ =          +2x=            +3χ=           X  =3 

χ÷ = ÷           χ÷ =                  χ÷0.4=0.625                  

 χ÷ =              χ÷ =         χ÷ =36            10×χ=                 
 
 58 x = 15       x÷ 29 =67           34 x÷16 =18        4 ÷χ=1 ×  
 ∶ =8∶χ
 

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