班级:
姓名:
求未知数
x
(1) x +12=31 (2) x += (3)100+x =250
4) x =4 7) x = 10) x ÷=3 13)6 x -35=13 (5) x -6=
8)5 x =
( 11) x ÷5=15
(14)3 x -12×6=61 / 3
(6)3 x =18
9) x ÷7=
(12)3 x +4=40
(15)18+5x=21
(((((( 小学六年级求未知数
(16)2( x -16)=8
(17)(5 x -12)× 18=24
(18)8 x -3 x =105
(19)(22)
(25)(28)2 x + x =
( 2
x
1 x
3
2
42
43 - x =38
34-12 x =15 20)
x + x +6=26
( )
x
23
20 -
=9
(26)19 - 2 x =9
(30)÷ x =3
2 / 3
21) x -036 x =16
( )
x 24 15-
=2
(27)100-3 x =16
(31)× 8÷ x =5
3(
小学六年级求未知数
(32)÷ x =7
(33)÷ 4 x =
(34)÷ x =
(35)÷ x =8
(36)36—3 x =
(37) x : 10 1 : 1
(38)
0.4 : x 1.2 : 2
(41) 1 1
1
: x
:
4
2 3
(44) 2 8 9
x
(39) 12
3 2.4
x
( 42
) 0.8 : 4 x : 8
45
) 1.2 3
2.5 x
3 / 3
4 3
( ) 2.4 6
40
1.5 x
( 43
) 3
: x 3 :12
4
46
) 6.5 : x 3.25 : 4
((
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