五年级数学(方程)习题及答案汇编.pdf

五年级数学(方程)习题及答案汇编 (1)18x+2x+31=191(2)17.8+27x=28.6(3)1.5x-0.4x-0.4=15 (4)x7=6(5)11x-35=141(6)1.3+x=5.3 (7)15x+7x+28=116(8)3.5x-1.4x+0.6=59.4(9)18.6-2x=16.4 (10)147x=21(11)116x=29(12)6x=126 (13)131-32x=67(14)9x+210.7=24.6(15)x-11=35 (16)4.6x-1.3=17.1(17)2x=24(18)4.9x-2.9x+2.8=18.8 (19)12x+18x-7=233(20)12.6x=0.2(21)14.1+1.8x=32.1 (22)x+29=61(23)2x+334=292(24)4x+5x=270 (25)2(4.4x+2.3)=22.2(26)82x-36x+4.6=23(27)(3.7x+9.2)19=3.6 (28)5.3x-4.1x=7.2(29)9x-56=132(30)8(0.4x-7.6)=16 (31)(2.3x+9.5)6=5.8(32)0.6x+4.8=17.4(33)0.2x=4.4 (34)(7.6x-6.5)3=10.5(35)7.5x+5.4x-2=165.7(36)13.8+0.3x=23.4 (37)148-2x=36(38)66x6=22(39)x3=11 (40)10 x+330.5=29.5(41)49-x=17(42)22x-122=42 (43)12x+14x-35=69(44)73x-17=129(45)53x=10.6 (46)8.7-x=7(47)x25=0.4(48)120+66x=318 (49)3.7-x=1.5(50)20 x=10(51)7.9-x=5.9 (52)19x+35=92(53)2.7x+2.1x-4.6=43.4(54)4.5x-2.8x-2.5=2.6 (55)0.8x+2.2=21.4(56)x+3=7(57)24x-230.4=2.8 (58)5(1.6x-6.2)=33(59)8.7x-4x-2.2=35.4(60)(8x+49)3=67 (61)8.7x-3.3x+1=60.4(62)4x-81.1=10(63)7x+52x+1.8=54.9 (64)141+84x=309(65)4x+5.6=18.4(66)4x-1.6x=57.6 (67)(1.5x-9.8)2=2.6(68)15.7+0.7x=33.2(69)2x-47=83 (70)95x-30 x+2.6=67.6(71)65-x=43(72)4.5x+0.329=17.7 (73)0.6x-0.82=3.8(74)1.6x+7.1x-2.8=32(75)7x-0.6x=57.6 (76)88x-79x-0.4=6.8(77)11.4+5x=20.9(78)1.2x=0.3 (79)3(3x+6)=99(80)3x-1.6=7.7(81)1.2x+0.2x+0.9=51.3 (82)3x+37=160(83)5.4x+4x=141(84)5.1x6=1.7 (85)15x-4x+45=133(86)11x=4.4(87)2.2x+1.4x=36 (88)x+23=48(89)17(11x-22)=187(90)5(x-5)=75 (91)46x-5.1=13.3(92)(3x+3)9=9(93)(8x-49)3=61 (94)88+x=171(95)15x-12x=21(96)x6=8 (97)(16x-8)25=8(98)0.4x-0.511=14.1(99)3.7x-2.2=5.2 (100)1.2x6=2(101)x+6.2=7(102)0.4x=3.2 (103)9.5x+7.7x+4.7=159.5(104)18.9-1.9x=5.6(105)2(0.4x+7.4)=38 (106)3x+250.2=13.4(107)40+2x=234(108)3x+14x+13=115 (109)17x-8x=36(110)0.3x+2.4x+1.5=47.4(111)x-3.1=2.1 (112)3(5x+18)=114(113)4x5=1.6(114)1.4+x=10.1 (115)x5=0.9(116)3x+21=102(117)18x-10 x-49=15 (118)49x+47x-0.5=105.1(119)0.5x=1.5(120)2+x=10 (121)4x+23x-2.2=65.3(122)x-7.3=1(123)45x=15 (124)0.3x+4.74=27.5(125)22x-4x+1.2=80.4(126)13x+11x=96 (127)11(17x-41)=110(128)12x+19x=124(129)4.9x=0.7 (130)12.6-7x=9.8(131)6.1+x=12.6(132)6x-2x+9=89 (133)10 x-6x+21=69(134)182-2x=164(135)4x+236=302 (136)x16=0.7(137)2(1.6x+2.3)=39.8(138)2x12=1 (139)35x+47x+4=159.8(140)11x-4x=91(141)x-3.8=2.3 (142)x-20=17(143)47x-12x-3.7=34.8(144)(2.1x+1.2)24=1.1 (145)x+1.1=3.6(146)14x+2x+4.4=54(147)12.5-1x=5.5 (148)10 x=40(149)83x+76x-1.8=189(150)10 x-5.1=4.9 (151)8x22=0.4(152)4.1x+4.9=21.3(153)8x+6x-30=236 (154)14x+215=170(155)1.3x-1.213=2.6(156)8x+2.8=22.8 (157)3x-22.6=1.1(158)9x+5.2=7.9(159)x-31=62 (160)12(x+3)=72(161)4.4x+1.14=13.2(162)7x-4x-35=10 (163)84x12=14(164)5.1-0.5x=3.6(165)(11x-18)6=41 (166)76x-38x-3.4=38.4(167)19x-11x-27=21(168)17-2x=8.4 (169)(4x+41)3=19(170)6.9x+3.7x=31.8(171)0.7x9=1.4 (172)58-x=47(173)0.5x-1.3=8.2(174)6(0.6x-0.8)=20.4 (175)3.4+2x=22(176)22x-113=11(177)52+x=132 (178)90 x5=36(179)x+9=75(180)(6.5x-2.9)21=1.1 参考答案 (1)x=8(2)x=0.4(3)x=14 (4)x=42(5)x=16(6)x=4 (7)x=4(8)x=28(9)x=1.1 (10)x=7(11)x=4(12)x=21 (13)x=2(14)x=1.1(15)x=46 (16)x=4(17)x=12(18)x=8 (19)x=8(20)x=63(21)x=10 (22)x=32(23)x=80(24)x=30 (25)x=2(26)x=0.4(27)x=16 (28)x=6(29)x=18(30)x=24 (31)x=11(32)x=21(33)x=22 (34)x=5(35)x=13(36)x=32 (37)x=56(38)x=2(39)x=33 (40)x=1.3(41)x=32(42)x=3 (43)x=4(44)x=2(45)x=0.2 (46)x=1.7(47)x=10(48)x=3 (49)x=2.2(50)x=0.5(51)x=2 (52)x=3(53)x=10(54)x=3 (55)x=24(56)x=4(57)x=0.5 (58)x=8(59)x=8(60)x=19 (61)x=11(62)x=4.7(63)x=0.9 (64)x=2(65)x=3.2(66)x=24 (67)x=10(68)x=25(69)x=65 (70)x=1(71)x=22(72)x=2 (73)x=9(74)x=4(75)x=9 (76)x=0.8(77)x=1.9(78)x=4 (79)x=9(80)x=3.1(81)x=36 (82)x=41(83)x=15(84)x=2 (85)x=8(86)x=0.4(87)x=10 (88)x=25(89)x=3(90)x=20 (91)x=0.4(92)x=26(93)x=29 (94)x=83(95)x=7(96)x=48 (97)x=13(98)x=49(99)x=2 (100)x=10(101)x=0.8(102)x=8 (103)x=9(104)x=7(105)x=29 (106)x=2.8(107)x=97(108)x=6 (109)x=4(110)x=17(111)x=5.2 (112)x=4(113)x=2(114)x=8.7 (115)x=4.5(116)x=27(117)x=8 (118)x=1.1(119)x=3(120)x=8 (121)x=2.5(122)x=8.3(123)x=3 (124)x=29(125)x=4.4(126)x=4 (127)x=3(128)x=4(129)x=7 (130)x=0.4(131)x=6.5(132)x=20 (133)x=12(134)x=9(135)x=41 (136)x=11.2(137)x=11(138)x=6 (139)x=1.9(140)x=13(141)x=6.1 (142)x=37(143)x=1.1(144)x=12 (145)x=2.5(146)x=3.1(147)x=7 (148)x=4(149)x=1.2(150)x=1 (151)x=1.1(152)x=4(153)x=19 (154)x=10(155)x=14(156)x=2.5 (157)x=2.1(158)x=0.3(159)x=93 (160)x=3(161)x=2(162)x=15 (163)x=2(164)x=3(165)x=24 (166)x=1.1(167)x=6(168)x=4.3 (169)x=4(170)x=3(171)x=18 (172)x=11(173)x=19(174)x=7 (175)x=9.3(176)x=2(177)x=80 (178)x=2(179)x=66(180)x=4