完整版283六年级解方程专项练习200题有答案ok.docx
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完整版283六年级解方程专项练习200题有答案ok.docx
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完整版283六年级解方程专项练习200题有答案ok
(1)x﹣= ,
六年级解方程专项练习 200 题(有答案)
(9)2x﹣ x=1.2,
(2) x× ×= ,
(10)9×3﹣1.7x=13.4,
(3)﹣4x= ,
(11)x﹣25%x=24,
(4)8×2.5﹣2x=13.6
(12) x﹣ +0.2= ,
(5)0.78:
x=3:
5,
(13)0.6x+90%x=78,
(6)1﹣20%x=0.4,
(14)20%x﹣2.4×3=0.8,
(8) 1÷(x﹣ )=6,
(15) x﹣ x=42,
第 1 页 共 28 页
(16)0.6x+3×2.5=67.5,
(23) 4x﹣ =3 ,
(17)1 ÷(x﹣0.45)=5 ,
(24)12x+7×0.3=20.1,
(18)x﹣2.25=8.25,
(25) x+ x= ,
(19) :
x=3:
12,
(26)x:
42=,
(20) x+0.8=5.6,
(27)×0.5+ x=,
(21)1.4:
x=1:
0.75,
(28)0.8:
=0.48:
x,
(22)x×(2﹣ )=24,
(29)χ﹣ χ= ,
第 2 页 共 28 页
(30)42:
=χ:
(39) ×3﹣7x=1.04,
(31)5x﹣0.4=75%,
(40) x﹣1﹣ x=2,
( 32)6x﹣0.9=4.5,
(41)x﹣ x=14,
(33)2(x﹣3)=5.8,
(42)3x﹣ x= ,
(34)1.6x=6.4,
(43) = ,
(35)4x﹣3×9=29,
(44)1.2:
= ,
(36)16+8x=40,
(45)=:
,
(37) x÷1.1=3,
(46):
=x:
0.8,
(38) +2x= ,
第 3 页 共 28 页
(47)x= +1,
(55)x:
0.3= :
,
(48)1﹣25%X+25%x= +25%x,
(56)150%x+66=99
=,
(49)
(57)x+6﹣0.8x=16
×X=,
(50)
(58)
(51) 5:
8=x:
32,
(59)
(52)2x+3×0.9=24.9,
(60)3 ÷(X﹣ )=1.3
(53)5.3x﹣2.9x= ,
(61)(X+0.5):
2 =(X﹣4):
,
(54) ×(7﹣2.8x)=1.5,
(62) X÷0.05=3.528,
第 4 页 共 28 页
(63)2X﹣4×6=80,
(72)
(64)4×4.5﹣3X=6.38,
(73),
(65)4X﹣7.2=10,
(74)4( +x)=,
(66)11.5X+X=20,
(75) ×0.25+ x= ,
(67)3.8×12+15X=87.6,
(68)6X+5=17,
(76)x﹣ ,
(69)0.6×(2.5+X)=4.2,
(77)200:
6=x:
,
(70) :
=X:
,
(78)4÷X= ,
(71),
(79)8(x﹣2)=2(x+7),
第 5 页 共 28 页
(80):
18%=,
(88)3(x+4.5)=60,
(89)1.6x+2.4=7.52,
﹣2x= ,
(81)
(90)3(x﹣0.8)=6.3,
x+ x=46,
(82)
(91)28.4﹣5x=5.8,
(83) :
x= :
,
(92)x:
=
(84)=,
(85)5(3x﹣4)﹣2(x﹣1)=5(2x﹣1)
(93) +2x= ,
(86)= ,
(94) x=15%,
(87)8(2X﹣7)=5(X+13),
(95) x﹣ x= ,
第 6 页 共 28 页
(96)x+50%x=6,
(104)x﹣ ,
(97) :
x=0.3:
12,
(105)x×,
(98)4x+2(8﹣x)=26,
(106)5x+35=650,
(99) x﹣ =0,
(107)720÷3x=80,
(100) + x=1,
(108)3.6x﹣0.9x=8.1,
(101)x×( + )=,
(109)4×4.5﹣3x=6,
(102),
(110)=,
(103),
(111)6×3﹣1.8X=7.2,
第 7 页 共 28 页
(112)÷x= ,
(120)22.5﹣0.4x=12.5,
(121)x:
3.5=4:
2 ,
(113)x÷=42,
(114) x+ =,
(122)x﹣0.8x﹣6=16,
(115)7x÷3=8.19,
(123) :
=x:
8,
(116)12:
0.6=x:
,
(124) ,
(117)3(x+2)=4(x+1),
(125)x:
15= :
,
(118)3x﹣70%x=9.2,
(126) x+ x= ,
(119)6+ x=240,
(127)x×50%﹣ x=5,
第 8 页 共 28 页
(128)1﹣ x= ,
(136) 7x÷3=8.19,
(129)2.5+1 x=3 ,
(137) 32.8﹣9x=17.5,
(130)3 x﹣2 =4,
(138) x﹣0.36x=16,
(131)8.5﹣3x=2 ,
(139) 6×7+3x=69,
(132)3 ÷x=4,
(140) 6x+2x﹣56=0,
(133) x﹣5%=17.54,
(141) 3x﹣0.45×4=2.7,
(134) :
= :
(4﹣x),
(142) 5.8x﹣4.6x=0.96,
(143)8.4÷(9﹣x)=3,
(135)6x+31=49,
第 9 页 共 28 页
(144)3x÷1.2=8,
(153) 7.8﹣3x=3.6,
(145)5x+28=71,
(154) 6×3﹣1.8x=7.2,
(146)8.7﹣1.2x=3.9,
(155)10:
x=4.5:
0.8,
(147)8x﹣2.6x=37.8,
(156) :
=x:
,
(148)0.75x﹣0.95×4=8.5,
(157)X﹣7.65=4.64,
(149)54÷2+3x=72,
(158)28.25﹣X=8.25,
(150)8x﹣2.6=37.8,
(159)X﹣(3.6+2.97)=12.42,
(151) x÷ =,
(160) ÷x= ,
(152)x+30%x=26,
(161)14.5=5.5,
第 10 页 共 28 页
(162)x﹣80%x=48,
(171)5 ÷x= ,
(163)75%x﹣5× =6,
(172) ﹣ x= ,
(164)x﹣6.8=15.4,
(173)4.5× ﹣3 x=1.5,
(165)1.9x=5.7,
(174)(1+25%)x=0.5,
(166)4.3y﹣y=4.6,
(175)x﹣40%x=9,
(167)5x+2.6=7.6,
(176)x×20%=15.2,
(168)x﹣1.5=12.9,
(178) x﹣x=,
(169)9x+5x=8.4,
(170)6.8+3.2x=14.8,
(179) x÷75%=3,
第 11 页 共 28 页
(180)4x﹣,
(188) ﹣ =1,
(181) :
x= :
4.5,
(189)4x﹣5×6=12,
(182)(x﹣4.5)×6=12.5,
(190)8x﹣3x=15.6,
(183)27﹣17x=13.4,
(191)30×(x÷4)=60,
(184)9.6+3x=3.24×5,
(192)7.2×0.5﹣3x=1.2,
(185)2x+5=5x﹣7,
(193)5x﹣2.4×5=8,
(186)3(x﹣2)=2﹣5(x﹣2),
(194) + x= ×2,
(187)4x﹣3(20﹣x)+4=0,
(195)5x+2.4×15=66,
第 12 页 共 28 页
(196)3.2x+2.8x-x=1,
(197)2.5×16-8x=12,
(198)9.6-3x=6.3,
(199)5(x+6)=75,
(200)x÷0.7+0.9×3=4,
第 13 页 共 28 页
解方程专项练习 200 题答案:
1÷(x﹣ )×(x﹣ )=6×(x﹣ ),
(1)x﹣= ,
= ,
,
x= ;
(2) x× ×= ,
x= ,
x×21= ×21,
x=12;
(3)﹣4x= ,
﹣4x+4x= +4x,
= +4x,
÷4=4x÷4,
x=.
(4)8×2.5﹣2x=13.6
20﹣2x=13.6,
13.6+2X=20,
2X=6.4,
x=3.2;
(5)0.78:
x=3:
5,
3x=0.78×5,
3x=3.9,
x=1.3
(6)1﹣20%x=0.4,
1﹣20%x+20%x=0.4+20%x,
0.4+20%x=1,
0.4+20%x﹣0.4=1﹣0.4,
20%x=0.6,
20%x×=0.6×,
x=3;
(8)1÷(x﹣ )=6,
1=6×(x﹣ ),
6x﹣6× =1,
6x﹣3=1,
6x=4,
6x÷6=4÷6,
x=
(9)2x﹣ x=1.2,
x(2﹣ )=1.2,
x=1.2,
x÷ =1.2÷ ,
x=1;
(10)9×3﹣1.7x=13.4,
27﹣1.7x=13.4,
27﹣1.7x+1.7x=13.4+1.7x,
13.4+1.7x=27,
13.4+1.7x﹣13.4=27﹣13.4,
1.7x=13.6,
1.7x÷1.7=13.6÷1.7,
x=8
(11)x﹣25%x=24,
75%x=24,
75%x÷75%=24÷75%,
x=32;
(12) x﹣ +0.2= ,
x﹣0.6= ,
x﹣0.6+0.6= +0.6,
x= ,
x÷ = ÷ ,
x=1
(13)0.6x+90%x=78,
第 14 页 共 28 页
1.5x=78,
1.5x÷1.5=78÷1.5,
x=52;
(14)20%x﹣2.4×3=0.8,
20%x﹣7.2=0.8,
20%x﹣7.2+7.2=0.8+7.2,
20%x÷20%=8÷20%,
x=40;
(15) x﹣ x=42,
x=42,
x÷ =42÷ ,
x=252
(16)0.6x+3×2.5=67.5,
0.6x+7.5=67.5,
0.6x+7.5﹣7.5=67.5﹣7.5,
0.6x=60,
0.6x÷0.6=60÷0.6,
x=100;
(17)1 ÷(x﹣0.45)=5 ,
÷(x﹣0.45)×(x﹣0.45)=(x﹣0.45),
x﹣2.4=1.6,
x﹣2.4+2.4=1.6+2.4,
x=4,
x÷=4÷,
x=
(18)x﹣2.25=8.25,
x﹣2.25+2.25=8.25+2.25,
x=10.5;
(19) :
x=3:
12,
3x= ×12,
3x÷3=9÷3,
x=3
(20) x+0.8=5.6,
x+0.8﹣0.8=5.6﹣0.8,
x=4.8,
x× =4.8× ,
x=8.
(21) 1.4:
x=1:
0.75,
x=1.4×0.75,
x=1.05
(22) x×(2﹣ )=24,
x× =24,
x× ÷ =24÷ ,
x=20;
(23) 4x﹣ =3 ,
4x﹣ + =3 + ,
4x=4,
4x÷4=4÷4,
x=1
(24)12x+7×0.3=20.1,
12x+2.1=20.1,
12x+2.1﹣2.1=20.1﹣2.1,
12x÷12=18÷12,
x=1.5;
(25) x+ x= ,
x= ,
x× ,
x= ;
(26)x:
42= ,
10x=42× ,
10x÷10=30÷10,
x=3
(27) ×0.5+ x= ,
第 15 页 共 28 页
0.75+ x=3.75,
0.75+ x﹣0.75=3.75﹣0.75,
x=3,
x÷ =3÷ ,
x=6;
(28)0.8:
=0.48:
x,
0.8x=×0.48,
0.8x=0.2,
0.8x÷0.8=0.2÷0.8,
x=
(29)χ﹣ χ= ,
x= ,
x=,
x=3;
(30)42:
=χ:
x=42× ,
x=30,
x=50;
(31)5x﹣0.4=75%,
5x﹣0.4+0.4=75%+0.4,
5x÷5=1.15÷5,
x=0.23
( 32)6x﹣0.9=4.5,
6x﹣0.9+0.9=4.5+0.9,
6x=5.4,
6x÷6=5.4÷6,
x=0.9;
(33)2(x﹣3)=5.8,
2(x﹣3)÷2=5.8÷2
x﹣3=2.9,
x﹣3+3=2.9+3,
x=5.9;
(34) 1.6x=6.4,
1.6x÷1.6=6.4÷1.6,
x=4;
(35) 4x﹣3×9=29,
4x﹣27=29,
4x﹣27+27=29+27,
4x=56,
4x÷4=56÷4,
x=14;
(36)16+8x=40,
16+8x﹣16=40﹣16,
8x=24,
8x÷8=24÷8,
x=3;
(37) x÷1.1=3,
x÷1.1×1.1=3×1.1,
x=3.3
(38) +2x= ,
+2x = ,
2x= ,
2x÷2= ÷2,
x= ;
(39) ×3﹣7x=1.04,
2.16﹣7x=1.04,
2.16﹣7x﹣1.04=1.04﹣1.04,
1.12﹣7x=0,
7x÷7=1.12÷7,
x=0.16;
(40) x﹣1﹣ x=2,
x﹣1=2,
x﹣1+1=2+1,
x=3,
x =3 ,
x=18;
(41)x﹣ x=14,
第 16 页 共 28 页
x=14,
x=14,
x=18;
(42)3x﹣ x=,
x=1
(48) 1﹣25%X+25%x= +25%x,
0.25x+0.25﹣0.25=1﹣0.25,
0.25x=0.75,
x=3;
x=,
(49)
= ,
x=,
x=;
(43)=,
2.4x=72×0.26,
2.4x=18.72,
2.4x÷2.4=18.72÷2.4,
x=7.8;
(44)1.2:
= ,
x=1.2×5,
x=6,
x=6,
x=9;
(45)=:
,
x=18×,
x=,
x=,
x=12;
(46):
=x:
0.8,
x=×0.8,
x=0.04,
x=0.2;
(47)x= +1,
x× =× ,
0.25x=1.25×1.6,
0.25x÷0.25=1.25×1.6÷0.25,
x=8;
×X= ,
(50)
×X÷ = ,
x= ;
(51) 5:
8=x:
32,
8x=5×32,
8x÷8=5×32÷8,
x=20
(52)2x+3×0.9=24.9,
2x+2.7=24.9,
2x+2.7﹣2.7=24.9﹣2.7,
2x÷2=22.2÷2,
x=11.1;
(53)5.3x﹣2.9x= ,
2.4x= ,
2.4x÷2.4= ÷2.4,
x= ;
(54) ×(7﹣2.8x)=1.5,
×(7﹣2.8x) =1.5 ,
7﹣2.8x=2.1,
7﹣2.8x+2.8x=2.1+2.8x,
7﹣2.1=2.1+2.8x﹣2.1,
4.9÷2.8=2.8x÷2.8,
x=1.75;
(55)x:
0.3= :
,
x=0.3× ,
第 17 页 共 28 页
x=,
x=
(56)150%x+66=99
1.5x+66=99
1.5x=33
x=22
(57)x+6﹣0.8x=16
0.2x+6=16
0.2x=10
x=50
(58)
x=14.4
(59)
0.55x=5.5
x=10
(60)3÷(X﹣ )=1.3
3÷(X﹣ )×(x﹣ )=1.3×(x﹣ ),
3=1.3x﹣0.78,
3+0.78=1.3x﹣0.78+0.78,
4.68=1.3x,
4.68÷1.3=1.3x÷1.3,
x=3.6;
(61)(X+0.5):
2 =(X﹣4):
,
×(x﹣4)=(x+0.5)× ,
x﹣×4= x+ ×0.5,
x﹣10﹣ x= x+x,
2.25x﹣10+10=0.125+10,
2.25x÷2.25=10.125÷2.25,
x=4.5
(62) X÷0.05=3.528,
X÷0.05×0.05=3.528×0.05,
X=0.1764;
(63)2X﹣4×6=80,
2X﹣24=80,
2X﹣24+24=80+24,
2X=104,
2X÷2=104÷2,
X=52;
(64)4×4.5﹣3X=6.38,
18﹣3X=6.38,
18﹣3X+3X=6.38+3X,
6.38+3X=18,
6.38+3X﹣6.38=18﹣6.38,
3X=11.62,
3X÷3=11.62÷3,
X= ;
(65)4X﹣7.2=10,
4X﹣7.2+7.2=10+7.2,
4X=17.2,
4X÷4=17.2÷4,
X=4.3;
(66)11.5X+X=20,
12.5X=20,
12.5X÷12.5=20÷12.5,
X=1.6;
(67)3.8×12+15X=87.6,
45.6+15X=87.6,
45.6+15X﹣45.6=87.6﹣45.6,
15X=42,
15X÷15=42÷15,
X=2.8
(68)6X+5=17,
6x+5﹣5=17﹣5,
6x÷6=12÷6,
x=2;
(69)0.6×(2.5+X)=4.2,
0.6×(2.5+X)÷0.6=4.2÷0.6,
2.5+x=7,
2.5+x﹣2.5=7﹣2.5,
x=4.5;
(70) :
=X:
,
x= × ,
x÷ = ,
x=0.6
第 18 页 共 28 页
(71),
,
,
;
(72)
,
,
,
,
;
(73),
,
,
(74)4( +x)=,
+4x=,
+4x﹣=﹣,
4x=4,
x=1;
(75) ×0.25+ x= ,
,
,
x= ;
(77)200:
6=x:
,
6x=200× ,
6x÷6=480÷6,
x=80
(78)4÷X= ,
4÷X×X= X,
X=4,
X÷ =4÷ ,
X=10;
(79)8(x﹣2)=2(x+7),
8X﹣16=2X+14,
6X﹣16=14,
6X=30,
X=5;
(80) :
18%= ,
X=0.18×6.5,
X=1.17,
X=7.8
0.2+ x= ,
(81)
﹣2x= ,
0.2+ x﹣0.2= ﹣0.2,
x=,
x=
(76)x﹣,
﹣2x+2x= +2x,
+2x= ,
+2x﹣ = ﹣ ,
2x= ,
第 19 页 共 28 页
2x÷2=÷2,
x=;
x+ x=46,
(82)
x( + )=46,
x=46,
x÷=46÷,
x=40;
(83) :
x= :
,
x= × ,
x=,
x÷ =÷ ,
x=;
(84)=,
1.6x=6.4×2,
1.6x=12.8,
1.6x÷1.6=12.8÷1.6,
x=8
(85)5(3x﹣4)﹣2(x﹣1)=5(2x﹣1)
15x﹣20﹣2x+2=10x﹣5,
13x﹣18=10x﹣5,
13x﹣18﹣10x=10x﹣5﹣10x,
3x﹣18=﹣5,
3x﹣18+18=﹣5+18,
3x=13,
3x÷3=13÷3,
x=;
(86)= ,
3(6x﹣1)=64,
18x﹣3=64,
18x﹣3+3=64+3,
18x=67,
18x÷18=67÷18,
x=
(87)8(2X﹣7)=5(X+13),
16x﹣56=5x+65,
16x﹣56﹣5x=5x+65﹣5x,
11x﹣56=65,
11x﹣56+56=65+56,
11x=121,
11x÷11=121÷11,
x=11,
(88)3(x+4.5)=60,
3(x+4.5)÷3=60÷3,
x+4.5=20,
x+4.5﹣4.5=20﹣4.5,
x=15.5
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