小学总复习解方程专项练习200题(有答案)-K1.doc
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1、 21 / 21解方程专项练习200题有答案解方程专项练习200题有答案1x=,2 x=,3 4x=,4 82.52x=13.65 0.78:x=3:5,6120%x=0.4,8 1x=6,92xx=1.2,10931.7x=13.4,11x25%x=24,12x+0.2=,130.6x+90%x=78,1420%x2.43=0.8,15xx=42,160.6x+32.5=67.5,171x0.45=5,18x2.25=8.25,19:x=3:12,20x+0.8=5.6,21) 1.4:x=1:0.75, (22) x2=24,(23) 4x=3,2412x+70.3=20.1,25x+x=
2、,26x:42=,270.5+x=,280.8:=0.48:x,29=,3042:=:315x0.4=75%,( 32) 6x0.9=4.5,(332x3=5.8,34) 1.6x=6.4,(35) 4x39=29,(3616+8x=40,37 x1.1=3,38+2x=,3937x=1.04,40x1x=2,41xx=14,423xx=,43=,441.2:=,45=:,46:=x:0.8,47x=+1,48125%X+25%x=+25%x,49=,50X=,51 5:8=x:32,522x+30.9=24.9,535.3x2.9x=,5472.8x=1.5,55x:0.3=:,56150%
3、x+66=9957x+60.8x=165859603X=1.361X+0.5:2=X4:,62 X0.05=3.528,632X46=80,6444.53X=6.38,654X7.2=10,6611.5X+X=20,673.812+15X=87.6,686X+5=17,690.62.5+X=4.2,70:=X:,71,7273,744+x=,750.25+x=,76x,77200:6=x:,784X=,798x2=2x+7,80:18%=,812x=,82x+x=46,83:x=:,84=,8553x42x1=52x186=,8782X7=5X+13,883x+4.5=60,891.6x+2.
4、4=7.52,903x0.8=6.3,9128.45x=5.8,92)x:=93+2x=,94x=15%,95xx=,96x+50%x=6,97:x=0.3:12,984x+28x=26,99x=0,100+x=1,101x+=,102,103,104x,105x,1065x+35=650,1077203x=80,1083.6x0.9x=8.1,10944.53x=6,110=,111631.8X=7.2,112x=,113x=42,114x+=,1157x3=8.19,11612:0.6=x:,1173x+2=4x+1,(118)3x70%x=9.2,(119) 6+x=240,12022.
5、50.4x=12.5,121x:3.5=4:2,122x0.8x6=16,123:=x:8,124,125x:15=:,126x+x=,127x50%x=5,1281x=,1292.5+1x=3,1303x2=4,1318.53x=2,1323x=4,133x5%=17.54,134:=:4x,(135) 6x+31=49,(136) 7x3=8.19,(137) 32.89x=17.5,(138) x0.36x=16,(139) 67+3x=69,(140) 6x+2x56=0,(141) 3x0.454=2.7,(142) 5.8x4.6x=0.96,(143) 8.49x=3,(144)
6、 3x1.2=8,1455x+28=71,1468.71.2x=3.9,1478x2.6x=37.8,1480.75x0.954=8.5,149542+3x=72,1508x2.6=37.8,151x=,152x+30%x=26,153 7.83x=3.6,154 631.8x=7.2,15510:x=4.5:0.8,156:=x:,157X7.65=4.64,15828.25X=8.25,159X3.6+2.97=12.42,160x=,16114.5=5.5,162x80%x=48,16375%x5=6,164x6.8=15.4,1651.9x=5.7,1664.3yy=4.6,1675x
7、+2.6=7.6,(168) x1.5=12.9,(169) 9x+5x=8.4,(170) 6.8+3.2x=14.8,1715x=,172x=,1734.53x=1.5,1741+25%x=0.5,175x40%x=9,176x20%=15.2,178xx=,179x75%=3,1804x,181:x=:4.5,182x4.56=12.5,1832717x=13.4,1849.6+3x=3.245,1852x+5=5x7,(186) 3x2=25x2,1874x320x+4=0,188=1,1894x56=12,1908x3x=15.6,19130x4=60,1927.20.53x=1.2
8、,1935x2.45=8,194+x=2,1955x+2.415=66, 1963.2x+2.8x-x=1, 1972.516-8x=12, 1989.6-3x=6.3, 1995x+6=75,200x0.7+0.93=4,答案:1x=,=, x=; 2 x=,x=,x21=21, x=12; 3 4x=,4x+4x=+4x,=+4x,4=4x4, x=4 82.52x=13.6 202x=13.6, 13.6+2X=20, 2X=6.4, x=3.2;5 0.78:x=3:5, 3x=0.785, 3x=3.9, x=1.36120%x=0.4, 120%x+20%x=0.4+20%x, 0
9、.4+20%x=1,0.4+20%x0.4=10.4, 20%x=0.6, 20%x=0.6, x=3;8 1x=6,1xx=6x, 1=6x, 6x6=1, 6x3=1, 6x=4, 6x6=46, x=92xx=1.2, x2=1.2,x=1.2,x=1.2, x=1;10931.7x=13.4, 271.7x=13.4, 271.7x+1.7x=13.4+1.7x, 13.4+1.7x=27,13.4+1.7x13.4=2713.4, 1.7x=13.6, 1.7x1.7=13.61.7, x=811x25%x=24, 75%x=24, 75%x75%=2475%, x=32;12x+0
10、.2=,x0.6=,x0.6+0.6=+0.6,x=,x=, x=1130.6x+90%x=78, 1.5x=78, 1.5x1.5=781.5, x=52; 1420%x2.43=0.8, 20%x7.2=0.8, 20%x7.2+7.2=0.8+7.2, 20%x20%=820%, x=40;15xx=42,x=42,x=42, x=252160.6x+32.5=67.5, 0.6x+7.5=67.5, 0.6x+7.57.5=67.57.5, 0.6x=60, 0.6x0.6=600.6, x=100; 171x0.45=5,x0.45x0.45=x0.45,x2.4=1.6,x2.4+
11、2.4=1.6+2.4,x=4,x=4, x=18x2.25=8.25, x2.25+2.25=8.25+2.25, x=10.5;19:x=3:12, 3x=12, 3x3=93, x=320x+0.8=5.6,x+0.80.8=5.60.8,x=4.8,x=4.8, x=821) 1.4:x=1:0.75, x=1.40.75, x=1.05 (22) x2=24, x=24, x=24, x=20;(23) 4x=3,4x+=3+, 4x=4, 4x4=44, x=12412x+70.3=20.1, 12x+2.1=20.1, 12x+2.12.1=20.12.1, 12x12=1812
12、, x=1.5;25x+x=,x=,x, x=;26x:42=, 10x=42, 10x10=3010, x=3270.5+x=, 0.75+x=3.75, 0.75+x0.75=3.750.75,x=3,x=3, x=6;280.8:=0.48:x, 0.8x=0.48, 0.8x=0.2, 0.8x0.8=0.20.8, x=29=,x=,x=, x=3;3042:=:x=42,x=30, x=50;315x0.4=75%, 5x0.4+0.4=75%+0.4, 5x5=1.155, x=0.23( 32) 6x0.9=4.5, 6x0.9+0.9=4.5+0.9, 6x=5.4, 6x6
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