1、精品文档精品文档五年级方程题170道(1)(0.5+x)+x=9.82 (2)2(X+X+0.5)=9.8 (3)25000+x=6x (4)3200=440+5X+X (5)X-0.8X=6 (6)12x-8x=4.8 (7) 7.5+2X=15 (8)1.2x=81.6 (7)x+5.6=9.4 (10)x-0.7x=3.6 (11)91x1.3 (12) X+8.3=10.7 (13) 15x3 (14) 3x816 (15) 3x+9=27(16) 18(x-2)=270 (17) 12x=300-4x (18) 7x+5.3=7.4 (19) 3x5=4.8 (25) 0.5x+8=
2、43 (26) 6x-3x=18 (27) 7(6.5+x)=87.5精品文档精品文档(28) 0.273x=0.35 (29) 1.8x=0.972 (30) x0.756=90 (31) 0.1(x+6)=3.30.4 (32) (27.5-3.5)x=4 (33) 9x-40=5 (34) x5+9=21 (35) 48-27+5x=31 (36) 10.5+x+21=56 (37) x+2x+18=78 (38) (200-x)5=30 (39) (x-140)70=4 (40) 20-9x=2(41) x+19.8=25.8 (42) 5.6x=33.6 (43) 9.8-x=3.8
3、 (44) 75.6x=12.6 (45) 5x+12.5=32.3 (46) 5(x+8)=102 (47) x+3x+10=70 (48) 3(x+3)=50-x+3 (49) 5x+15=60 (50) 3.5-5x=2 (51) 0.37+4x=12.5 精品文档精品文档(52) x1.5-1.25=0.75 (53) 4x-1.36=2.6 (54) 6x+12.8=15.8 (55) 1502+3x=690 (56) 2x-20=4 (57) 3x+6=18 (58) 2(2.8+x)=10.4 (59) (x-3)2=7.5 (60) 13.2x+9x=33.3 (61) 3x=
4、x+100 (62) x+4.8=7.2 (63) 6x+18=48 (64)3(x+2.1)=10.5 (65)12x-9x=8.7 (66)13(x+5)=169 (67) 2x-97=34.2 (68)3.4x-48=26.8 (69)42x+25x=134 (70)1.5(x+1.6)=3.6 (71)2(x-3)=5.8 (72)65x+7=137(73) 9x+42.591(74) 4.2 x+2.5x134 (75) 10.5x+6.5x=51 精品文档精品文档(76) 89x-43x=9.2 (77) 5x-45=100 (78) 1.2x-0.5x=6.3 (79) 23.4
5、=2x(80) 4x-x=48.6 (81) 4.5x-x=28 (82)X-5.7=2.15 (83)5X-2X=18 (84)3X+0.7=7(85) 3.52= 4.2+x (86) 261.5= 2x+10 (87) 0.516160.2=4x (88) 13 9.25X=0.403 (89) 18.9X=0. 3 (90) 23x=14x27 (91) x14x=75(92)955x80 (93)1.8 +6x54 (94) 6.7x60.36.7 (95) 94x53(96) 2x+8=16 (97) 20x-14x=24 (98) x+7x=8 精品文档精品文档(99) 9x-3
6、x=6(100) 6x-8=4 (101) 5x+x=9 (102) 8x-8=6x (103) x=20 54(104) 2x-6=12 (105) 7x+7=14 (106) 6x-6=0 (107) 5x+6=11 (108) 2x-8=10 (109) 2.5x-8=4 (110) x- =7 43(111)3x+7=28 (112) 3x-7=26 (113) 9x-x=16 (114) 24x+x=50(115) 1.2x-8=4 (116) 3x-8=31(117) 6x+6=12 (118) 3x-3=3 (119) 5x-3x=4 (120) 2x+16=19 (121) 5
7、x+8=19 (122) 14-6x=8 精品文档精品文档(123) 15+6x=27 (124) 5-8x=4 (125) 7x+8=15 (126) 9-2x=1 (127) 4+5x=9 (128) 10-x=8 (129) 8x+9=17(130) 9+6x=15 (131) x+9x=4+7 (132) 2x+9=17 (133) 8-4x=6 (134) 6x-7=28 (135) 7x-9=20(136) x-56=1 (137) 8-7x=1 (138)x-30=12 (139) 6x-21=21 (140) 6x-3=6 (141) 9x=18 (142) 4x-18=14
8、(143) 5x+9=11 (144) 17-2x=11 (145) x+4+8=23精品文档精品文档(146) 7x-12=9(147) X-5.7=2.15(148) 5X-2X=18 (149) 3X +0.5=5 (150) 3.52= 4 x (151) 261.5= 2x (152) 0.516160.1=4x (153) 9.26X=0.402(154) 36.9X=0.3 (155) X0.5=2.6(156) 935x80 (157) 180-6x54 (158) 94x40 (159) 0.2x0.40.53.7 (160) 9.4x0.4x16.2 (161) 924x2
9、0 (162) 7x6=1.4(163) 16x34x=1 (164) 18x14x=12 (165) 3 x4214=15 (166) 124x=56 (167) 2214x=12(168) X+8.3=10.7 精品文档精品文档(169) 5x 30 (170) x-5.6=9.4 (171) x0.8=90(172) 3x816 (173) 3x+9=27 (174) 5.3+7x=7.4 (175) 3x5=4.8(176) X-0.8X=6 (177) 12x+8x=4.8 (178) 7(x-2)=49 (179) 48+2x=36(180) (x-2)3=7 (181) x5+9
10、=21 (182)(300-x)5=30 (183) 91x 1.3 (184) 41-3x=17 精品文档精品文档五年级解方程180题答案(1)(0.5+x)+x=9.82 0.5+2x=4.90.5+2x-0.5=4.9-0.52x=4.42x2=4.42X=2.2(2)2(X+X+0.5)=9.8 2x+2x+1=9.84x+1-1=9.8-14x=8.84x4=8.84X=2.2(3)25000+x=6x 25000+x-x=6x-x5x=250005x5=250005X=5000(4)3200=440+5X+X 6x+440=32006x+450-450=3200-4406x=276
11、06x6=27606X=460(5)X-0.8X=6 0.2x=60.2x0.2=60.2X=30(6)12x-8x=4.8 4x=4.84x4=4.84X=1.2(7) 7.5+2X=15 2x+7.5-7.5=15-7.52x=7.52x2=7.52X=3.75(8) 1.2x=81.6 1.2x1.2=81.61.2X=68(9) x+5.6=9.4 X+5.6-5.6=9.4-5.6X=3.8(10)x-0.7x=3.6 0.3x=3.60.3x0.3=3.60.3X=12(11)91x1.3 91xx=1.3x1.3x=911.3x1.3=911.3X=70(12) X+8.3=10
12、.7 X+8.3-8.3=10.7-8.3X=2.4(13) 15x3 15x15=315X=0.2(14) 3x816 3x-8+8=16+83x=243x3=243X=8(15) 3x+9=273x+9-9=27-93x=183x3=1833x=6(16) 18(x-2)=270 18x-36=27018x-36+36=270+3618x=30618x18=30618X=17(17) 12x=300-4x 12x+4x=300-4x+4x16x=300精品文档精品文档16x16=30016X=18.75(18) 7x+5.3=7.4 7x+5.3-5.3=7.4-5.37x=2.17x7=
13、2.17X=0.3(19) 3x5=4.8 3x55=4.853x=243x3=243X=8(20) 30x+25=8530x+25-25=85-2530x=6030xx=60x30=60x60x60=3060X=0.5(21) 1.48-2x=6 11.2-2x+2x=6+2x11.2=6+2x2x+6-6=11.2-62x=5.22x2=5.22X=2.6(22) 6x-12.83=0.06 6x-38.4=0.06 6x=38.466x6=38.466X=6.41 (23) 410-3x=170 410-3x+3x=170+3x170+3x=4103x+170-170=410-1703x
14、=2403x3=2403X=80(24) 3(x+0.5)=21 3x+1.5=213x+1.5-1.5=21-1.53x=19.53x3=19.53X=6.5(25) 0.5x+8=43 0.5x+8-8=43-80.5x=350.5x0.5=350.5X=70(26) 6x-3x=18 3x=183x3=183X=6(27) 7(6.5+x)=87.57x+45.5=87.57x+45.5-45.5=87.5-45.57x=427x7=427X=6(28) 0.273x=0.35 x=0.2730.35X=0.78(29) 1.8x=0.972 1.8x1.8=0.9721.8X=0.54
15、(30) x0.756=90 x0.7560.756=900.756X=68.04(31) 0.1(x+6)=3.30.4 0.1x+0.6=1.320.1x+0.6-0.6=1.32-0.60.1x=0.720.1x0.1=0.720.1X=7.2(32) (27.5-3.5)x=4 24x=4x=244X=6(33) 9x-40=5 9x-40+40=5+409x=459x9=459X=5精品文档精品文档(34) x5+9=21 x5+9-9=21-9x5=12x55=125X=60(35) 48-27+5x=31 5x+21-21=31-215x=105x5=105X=2(36) 10.
16、5+x+21=56 x+31.5-31.5=56-31.5x=24.5(37) x+2x+18=78 3x+18-18=78-183x=603x3=603X=20(38) (200-x)5=30 (200-x)55=305200-x=150200-x+x=150+x150+x=200X+150-150=200-150X=50(39) (x-140)70=4 (x-140)7070=470X-140=280X-140+140=280+140X=420(40) 20-9x=29x=20-29x=18 9x9=189X=2(41) x+19.8=25.8 X+19.8-19.8=25.8-19.8X
17、=6 (42) 5.6x=33.6 5.6x5.6=33.65.6X=6(43) 9.8-x=3.8 9.8-x+x=3.8+x3.8+x=9.8X=9.8-3.8X=6(44) 75.6x=12.6 X=75.612.6X=6(45) 5x+12.5=32.3 5x+12.5-12.5=32.3-12.55x=19.85x5=19.85X=3.96(46) 5(x+8)=102 5x+40=1025x+40-40=102-405x=625x5=625X=12.4(47) x+3x+10=70 4x+10=704x+10-10=70-104x=604x4=604X=15(48) 3(x+3)=
18、50-x+3 3x+9=53-x3x+x+9-9=53-x+x-94x=444x4=444X=11(49) 5x+15=60 5x+15-15=60-155x=455x5=455X=9(50) 3.5-5x=2 3.5-5x+5x=2+5x5x+2=3.55x+2-2=3.5-2精品文档精品文档5x=1.55x5=1.55X=0.3(51) 0.37+4x=12.5 4x+2.1=12.54x+2.1-2.1=12.5-2.14x=10.44x4=10.44X=2.6(52) x1.5-1.25=0.75 x1.5-1.25+1.25=0.75+1.25x1.5=2x1.51.5=21.5X=
19、3 (53) 4x-1.36=2.6 4x-1.36+1.36=2.6+1.364x=10.44x4=10.44X=2.6(54) 6x+12.8=15.8 6x+12.8-12.8=15.8-12.86x=36x6=36X=0.5(55) 1502+3x=690 3x+300=6903x+300-300=690-3003x=3903x3=3903X=130(56) 2x-20=4 2x-20+20=4+202x=242x2=242X=12(57) 3x+6=18 3x+6-6=18-63x=123x3=123X=4(58) 2(2.8+x)=10.4 5.6+2x=10.42x+5.6-5.
20、6=10.4-5.62x=4.82x2=4.82X=2.4(59) (x-3)2=7.5 (x-3)22=7.52X-3=15X=18(60) 13.2x+9x=33.3 22.2x=33.322.2x22.2=33.322.2X=1.5(61) 3x=x+100 3x-x=x-x+1002x=1002x2=1002X=50(62) x+4.8=7.2 X=7.2-4.8X=2.4(63) 6x+18=48 6x+18-18=48-186x=306x6=306x=5 (64)3(x+2.1)=10.5 3x+6.3=10.53x=10.5-6.33x=4.23x3=4.23X=1.4(65)1
21、2x-9x=8.7 3x=8.73x3=8.73X=2.9(66)13(x+5)=169 13x+65=16913x+65-65=169-6513x=10413x13=10413X=8精品文档精品文档(67) 2x-97=34.2 2x-97+97=34.2+972x=131.22x2=131.22X=65.6(68)3.4x-48=26.8 3.4x-48+48=26.8+483.4x=74.83.4x3.4=74.83.4X=22(69)42x+25x=134 67x=13467x67=13467X=2(70)1.5(x+1.6)=3.6 1.5x+2.4=3.61.5x=3.6-2.41
22、.5x=1.21.5x1.5=1.21.5X=0.8 (71)2(x-3)=5.8 2x-6=5.82x-6+6=5.8+62x=11.82x2=11.82X=5.9(72)65x+7=13765x+7-7=137-765x=13065x65=13065X=2(73) 9x+42.5919x+10=919x+10-10=91-109x=819x9=819X=9(74) 4.2 x+2.5x134 6.7x=1346.7x6.7=1346.7X=20(75) 10.5x+6.5x=51 17x=5117x17=5117X=3(76) 89x-43x=9.2 46x=9.246x46=9.246X
23、=0.2(77) 5x-45=100 5x-45+45=100+455x=1455x5=1455X=29(78) 1.2x-0.5x=6.3 0.7x=6.30.7x0.7=6.30.7X=9(79) 23.4=2x2x2=23.42X=11.7(80) 4x-x=48.6 3x=48.63x3=48.63X=16.2(81) 4.5x-x=28 3.5x=283.5x3.5=283.5X=8(82)X-5.7=2.15 X=5.7+2.15X=7.85(83)5X-2X=18 3x=183x3=183X=6(84)3X+0.7=73x+0.7-0.7=7-0.73x=6.33x3=6.33X
24、=2.1(85) 3.52= 4.2+x 4.2+x=7精品文档精品文档X=7-4.2X=2.8(86) 261.5= 2x+10 2x+10=392x+10-10=39-102x=292x2=292X=14.5(87) 0.516160.2=4x 4x=4.84x4=4.84X=1.2(88) 13 9.25X=0.403 X=139.25-0.403X=138.847(89) 18.9X=0. 3 X=18.90.3X=63(90) 23x=14x27 23x-14x=14x-14x+279x=279x9=279X=3(91) x14x=7515x=7515x15=7515X=5(92)9
25、55x80 95-5x+5x=80+5x5x+80=955x+80-80=95-805x=15X=3(93)1.8 +6x54 6x=54-1.86x=52.26x6=52.26X=8.7(94) 6.7x60.36.7 6.7x=60.3+6.76.7x=676.7x6.7=676.7X=10(95) 94x534x=53-94x=444x4=444X=11(96) 2x+8=16 2x=16-82x=82x2=82X=4(97) 20x-14x=24 6x=246x6=246X=4(98) x+7x=8 8x=8X=1(99) 9x-3x=66x=6X=1 (100)6x-8=4 6x-8
26、+8=4+86x=12X=2(101) 5x+x=9 6x=96x6=96x=1.5(102) 8x-8=6x 8x-8+8=6x+88x-6x=6x-6x+82x=82x2=82X=4(103) x=20 54x =20X=25(104) 2x-6=12 2x-6+6=12+62x=182x2=182X=9精品文档精品文档(105) 7x+7=14 7x+7-7=14-77x=77x7=77X=1(106) 6x-6=0 6x-6+6=0+66x=6X=1(107) 5x+6=11 5x+6-6=11-65x=5X=1(108) 2x-8=10 2x-8+8=10+82x=18X=9(109
27、) 2.5x-8=4 2.5x-8+8=4+82.5x=122.5x2.5=122.5X=4.8(110) x- =7 43X- + =7+X=7.75(111) 3x+7=28 3x+7-7=28-73x=213x3=213X=7(112) 3x-7=26 3x-7+7=26+73x=333x3=333X=11(113) 9x-x=16 8x=168x8=168X=2(114) 24x+x=5025x=5025x25=5025X=2(115) 1.2x-8=4 1.2x-8+8=4+81.2x=121.2x1.2=121.2X=10(116) 3x-8=313x-8+8=31+83x=393
28、x3=393X=13(117) 6x+6=12 6x+6-6=12-66x=6X=1(118) 3x-3=3 3x-3+3=3+33x=63x3=63X=2(119) 5x-3x=4 2x=42x2=42X=2(120) 2x+16=19 2x+16-16=19-162x=32x2=32X=1.5(121) 5x+8=19 5x+8-8=19-85x=115x5=115X=2.2(122) 14-6x=8 14-6x+6x=8+6x6x+8-8=14-86x=6X=1(123) 15+6x=27 6x+15-15=27-156x=126x6=126精品文档精品文档X=2(124) 5-8x=4
29、 5-8x+8x=4+8x8x+4-4=5-48x=18x8=18X=0.125(125) 7x+8=15 7x+8-8=15-87x=7X=1(126) 9-2x=1 9-2x+2x=1+2x2x+1-1=9-12x=82x2=82X=4(127) 4+5x=9 5x+4-4=9-45x=5X=1(128) 10-x=8 X=10-8X=2(129) 8x+9=178x+9-9=17-98x=8X=1(130) 9+6x=15 6x+9-9=15-96x=6X=1(131) x+9x=4+7 10x=1110x10=1110X=1.1(132) 2x+9=17 2x+9-9=17-92x=8
30、2x2=82X=4(133) 8-4x=6 8-4x+4x=6+4x4x+6-6=8-64x=24x2=24X=0.5(134) 6x-7=28 6x-7+7=28+76x=366x6=366X=6(135) 7x-9=207x-9+9=8+207x=287x7=287X=4(136) x-56=1 X=56+1X=57(137) 8-7x=1 8-7x+7x=1+7x7x+1-1=8-17x=7X=1(138) x-30=12 X-30+30=12+30X=42(139) 6x-21=21 6x-21+21=21+216x=426x6=426X=7(140) 6x-3=6 6x-3+3=6+
31、36x=96x6=96X=1.5(141) 9x=18 9x9=189X=2(142) 4x-18=14 4x-18+18=14+184x=32精品文档精品文档4x4=324X=8(143) 5x+9=11 5x+9-9=11-95x=25x5=25X=0.4(144) 17-2x=11 17-2x+2x=11+2x2x+11-11=17-112x=62x2=62X=3(145) x+4+8=23X+12=23X=23-12X=11(146) 7x-12=97x-12+12=9+127x=217x7=217X=3(147) X-5.7=2.15x=5.7+2.15X=7.85(148) 5X-
32、2X=18 3x=183x3=183X=6(149) 3X +0.5=5 3x+0.5-0.5=5-0.53x=4.53x3=4.53X=1.5(150) 3.52= 4 x 4x=74x4=74X=1.75(151) 261.5= 2x 2x=392x2=392X=18(152) 0.516160.1=4x 4x=6.44x4=6.44X=1.6(153) 9.26X=0.402X=9.26-0.402X=8.858(154) 36.9X=0.3 X=36.90.3X=123(155) X0.5=2.6 X=0.52.6X=1.3(156) 935x80 93-5X+5X=80+5X5X+8
33、0-80=93-805X=135X5=135X=2.6(157) 180-6x54 180-6X+6X=54+6X6X+54-54=180-546X=1266X6=1266X=21(158) 94x40 4X+9-9=40-94X=314X4=314X=7.75(159) 0.2x0.40.53.7 0.2X-0.5+0.5-0.4+0.4=3.7-0.5+0.40.2X=3.60.2X0.2=3.60.2X=18(160) 9.4x0.4x16.2 9X=16.29X9=16.29X=1.8(161) 924x20 92-4X+4X=20+4X4X+20-20=92-204X=724X4=7
34、24精品文档精品文档(162) X=18(163) 7x6=1.47x66=1.467X=8.47X7=8.47X=1.2(163) 16x34x=1 50X=150X50=150X=0.02(164) 18x14x=12 4X=124X4=124X=3(165) 3 x4214=153X-3=153X-3+3=15+3 3X=183X3=183X=6(166) 124x=56 4X+12-12=56-124X=444X4=444X=11(167) 2214x=1222-14X+14X=12+14X14X+12-12=54-1214X=4214X14=4214X=3(168) X+8.3=10
35、.7 X=10.7-8.3X=2.4(169) 5x 30 5X5=305X=6(170) x-5.6=9.4 X=5.6+9.4X=15(171) x0.8=90X=0.890X=72(172) 3x816 3X-8+8=16+83X=243X3=243X=8(173) 3x+9=27 3X+9-9=27-93X=183X3=183X=6(174) 5.3+7x=7.4 7X+5.3-5.3=7.4-5.37X=2.17X7=2.17X=0.3(175) 3x5=4.83X=4.853X=243X3=243X=8(176) X-0.8X=6 0.2X=60.2X0.2=60.2X=30(17
36、7) 12x+8x=4.8 20X=4.820X20=4.820X=24(178) 7(x-2)=49 7X-14=497X-14+14=49+147X=637X7=637X=9(179) 48+2x=362X+32=362X+32-32=36-322X=42X2=42X=2(180) (x-2)3=7 X-2=37X-2=21精品文档精品文档X=23(181) x5+9=21 X5=21-9X5=12X=125X=60(182) (300-x)5=30 300-X=305300-X=150X=300-150X=150(183) 91x 1.3 X=911.3X=70(184) 41-3x=17 41-3X+3X=17+3X3X+17-17=41-173X=243X3=243X=8