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1、1 六年级分数解方程练习题班级姓名成绩 25%+10X=54 X-15%X=68 X83X121 5X32157532X4112 6X5=13.4 834143X 3X=83X72=167 X87X=43 4X632=2 125X=31053 X=722598 X=615116X356=45262513 4x3 9=29 21x+61x=4 2 103X2132=4 2041xx8)6.2(2 x6X5=13.4 25 X-13 X=310 4 638 5X=1915218X=154 X54=281532X41=12 53X=722598X=615116X356=45262513 X-0.25
2、=414X=30%4+0.7X=102 32X+21X=42 X+41X=105 X-83X=400 X-0.125X=8 X36=433 X+37 X=18 X(16+38)=1312 x0.375x=65x32+21=483 X 73X12 5 X2.4 58 0.36 5-34 x=3523(x-4.5)=7 12 x-25%x=10 x-0.8x=16+6 20 x 8.5=1.5 x-45 x-4=21 X25%X=90 X37 X=89解:(1)(12 3/412 2/3)x8/3(98)x8/3 17x8/3 x8/3 17 x8/51(2)7x/153/4 4/15 9/17
3、7x/159/85 x9/85 7/15 x27/119(3)(15 1/315 2/5)x20(56)x20 11x20 x20 11 4 x20/11(4)2x3x/76 11x/76 x6 11/7 360(126)5 288(2614)8 500 6-(50 2-80)(10512635)25 864(2723)12(453816)24 500(24038 6)64(8742)15(84515 3)1612(4928)7 450(8448)12(58+37)(64-9 5)95(64-45)178-145 5 6+42 812-700 (9+3111)85+14(14+208 26)(
4、284+16)(512-820818)120-36 4 18+35(58+37)(64-9 5)(6.8-6.80.55)8.5 0.12 4.8 0.12 4.8(3.2 1.5+2.5)1.6 6-1.6 4=5.38+7.85-5.37=7.2 0.8-1.25=6-1.193-0.43=6.5 (4.8-1.24)=5.8 (3.87-0.13)+4.2 3.74 32.52-(6+9.728 3.2)2.5(7.1-5.6)0.9-1.15 2.5 5.4 2.6(3.7-2.9)+0.62 12 6(12-7.2)-6 12 6 7.2-6 0.68 1.9+0.32 1.9(58
5、+370)(64-45)420+580-64 21 28(136+64)(65-345 23)48.10.15-10.750.4-5.7 388+(5000-1000)158+262+138 375+219+381+225 5 50012471021232(181+2564)+2719 378+44+114+242+222 276+228+353+219(375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+99999 7755(2187+755)2214+638+286 30657381065 899+344 2357183317357 236
6、51086214 497299 2370+1995 3999+498 1883398 12 25 75 24 138 25 4(13 125)(3 8)(12+24+80)50 704 25 25 32 125 32(25+125)88125 102 76 58 98 178 101178 84 36+6484 75 99+2 75 83 10283 2 98 199 123 18123 3+85123 50(34 4)3 25(24+16)178 99+178 79 42+79+7957 7300 25 4 8100 4 75 16800120 301002100 32000400 4970
7、0700 1248 24 6 3150 15 4800 25 2356(1356721)1235(17801665)75 27+192 5 31 870+13310 4(25 65+2528)(181+2564)+2719 378+44+114+242+222 276+228+353+219(375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+99755(2187+755)2214+638+286 3065 7381065 899+344 2357183317357 2365 1086214 497299 2370+1995 3999+498
8、1883398 12 25 75 24 138 25 4(13 125)(3 8)(12+24+80)50 704 25 25 32 125 32(25+125)88 125 102 76 58 98 178 101178 84 36+6484 75 99+2 75 83 10283 2 98 199 123 18123 3+85123 50(34 4)3 25(24+16)178 99+178 79 42+79+7957 7300 25 4 8100 4 75 16800120 7 301002100 32000400 49700700 1248 24 3150 15 4800 25 215
9、00125 2356(1356721)1235(17801665)75 27+1925 31 870+13310 4(25 65+2528)1 2x+3(9-x)=21 2x+3*9-3x=21 27-x=21 x=27-21 x=6 2.(1-25%)x=72 75%x=72 x=72 75%x=96 3.x-40%x=3.6(1-40%)x=3.6 x=3.6 60%x=6 6.2-1417 411=2-1128 411=107 2x+3x=60 5x=60 x=12 3.6x-2.8x=12 0.8x=12 x=15 100 x-x=198 99x=198 x=2 18x+2x=60(问
10、题里弄成+60 了 是等号吧?)20 x=60 8 x=3 5x+6x=12.1 11x=12.1 x=1.1 6.6x-5x=8 1.6x=8 x=5 4x-x=24 3x=24 x=8 1.5x-x=1 0.5x=1 x=2 1.9x+0.4x=9.2 2.3x=9.2 x=4 25x-5x=10 20-5 20 20 x=100 x=5 80 x-40=(30 x+40)2 80 x-40=60 x+80 20 x=120 x=6 80 x-3200=60 x+1200 20 x=4400 x=220 1.50.061.44 0.75 150.05,0.4 0.80.32,9 420 3512,25 12300,135 0.5270 3/4+1/4=1,3-2/3=7/3,3/4-1/2=1/4 1/6+1/2-1/6=1/2,7.5-(2.5+3.8)=1.2,7/8+3/8=5/4 3/10+1/5=1/2,4/5-7/10=1/10,2-1/6-1/3=1.5 0.51 170.03,32.81951.8,5.2 1.34,1.6 0.4 0.64 4.9 0.73.43,1 50.2,6 120.5,0.870.490.38