小学6年级数学分数计算题50题

小学6年级数学分数计算题50题

分数计算题
1.直接写出得数。
75×10%= 32×12.5%= + =      + =   ÷ =
12 - 16 = 12- = × = ÷ 7 = - =
9÷9×19 = 0.4+ = × = 4.5 ÷ = × 2.4=
+ = ÷ = 2- ÷ 1÷ - ÷1
+ 4.5÷ ×2.4 0.4+ ( - )×18
1÷ = 12-1 = + × =   ÷ = 24÷34 =
3+ -3+ = 0.1×30%= 2÷1%-2= ÷ = 12 - 16 =
+ =      + = 12- = × = 35 +13 = 0.2-16 = (3+320 )×5= 1÷23 ×32 = 34 +12 ÷ 12 = 0.25 - =
÷3 = 1÷ = 72 × = 8- = ×0÷ =
13× ÷13× = ( + )×56= + = 3- = 0÷ =
10÷ ×10= × = ÷ = ÷6= ×2÷ ×2=

15× 12÷ 9+29 =
4-38 -58 =   34 ×12=   23 ÷7=  12 ×12 ÷12 ×12 = 12 -25 =
58 ÷23 =  7÷19= 3.7×0.1% = 6÷(12 -13 )= 8.1+14 =
13 ×(15+67 )= 1-25 +35 = + = 0.4×0.4= ÷ =
× = 992=8×12.5%= + ×0= =
0.68+ +0.32= ÷ +0.75×8= ×5÷ ×5=
2- + - + - =

用递等式计算,能简算的简算

(45 +14 )÷ +710   
1110÷[56×( - ) ] ( + - )×4×9 
3.64÷4+4.36×25% ÷ + +
× ( + ) + 78 ×
÷ ( + ) ÷( - 0.2 )
×(7.2 + )- ÷ [ 2.5-( + 0.15 )÷0.6 ]×
( + )× 8 + ×11- -5
× ÷( + ) × +3÷4×
÷[ -( + )] ( - )×15
1 + ÷4- ÷( × )-1
+ ÷ ― ÷[ ( + )]

( + )×24 ( + )÷( - )
×[ -( - )] + ÷ ×
+ + ÷4 7.5× +7.5÷
[ -( - )]× 75 ×23 +1415 ÷ 19
0.16+4÷(38 -18 ) 37 -[ 195 -(145 +47 )]
35 ÷ [(15 +13 )÷29 ] 1.7+150 +3.98
17.625-(4.4+58 ) 6÷35 -35 ÷6
38 ×[89 ÷( 56 -34 )] ( )÷ +
75× +25× ( + )÷
( )×7×5
(333+667)÷[63×( )]
( - ÷2)÷ ( + ÷ )
÷[ ×(2- )] (4÷7+ )×5-  
1110÷[56×( - ) ] 3.64÷4+4.36×25%
( - )× ×36 1÷(55-5×7 )×
( × + ) ÷(11- ) 128× - ×128-2÷
910 ×(56 -49 ÷45 ) 1 × +2 × +
( + )×7×5 12 ×1120 +12 ×2049
78 ×[67 -(121 +37 )      ×[0.75-( - )]
+ ×(2.5- )
35 ÷〔78 -(25 +38 )〕

15.8- +14.2- ×3.7+3.6+5.3×
(1.5+ )÷3.75- ( )÷ +
10÷[ -( ÷ + )] 16×(1000+ )=

3.求未知数x
2.4×38 +3X=6
36- X= 18 2X+3×0.9 = 24.7
3.5-2.5x=0.375 x ÷ =
x + x = 5x -0.8×10 =3.19
x+ × =1 x×( - )=
80-4x=56 x+ x=
12x+7×30%=14.7 X - 23 X= 13
1.24×4-7x= x-30%x=50%x+12
x- x-4=18 5X-5×7=40
12-5X=6.5 X- X=
÷x=0.8 x+5×4=95
2.4×38 +3X=6
2X+0.1=1
23 X+12 X=42 X- =1.75
X- = 2x-1.65+2.35=7
x - x =9.45 3.7×5-2x=
x+4=4.7 3X-2.1=1.44 
x ÷ 75% = 50%x+4=4.7
χ – 25%χ= 24 x+75%x =
4χ+ 50%χ= 9 100%χ+ 200%χ=
50%X- =20% 50%x+ x=
x-80%x=70% 100%x-75%x-4=18
X-20%X= x×(75%- )=
X- =175% 75%x+ × =1

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