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

13、=5.46, x=0.9;(332x3=5.8,2x32=5.82 x3=2.9, x3+3=2.9+3, x=5.9;34) 1.6x=6.4,1.6x1.6=6.41.6, x=4;(35) 4x39=29, 4x27=29, 4x27+27=29+27, 4x=56, 4x4=564, x=14;(3616+8x=40,16+8x16=4016, 8x=24, 8x8=248, x=3;37 x1.1=3,x1.11.1=31.1, x=3.338+2x=,+2x=, 2x=, 2x2=2, x=;3937x=1.04, 2.167x=1.04, 2.167x1.04=1.041.04,

14、 1.127x=0, 7x7=1.127, x=0.16;40x1x=2,x1=2,x1+1=2+1,x=3,x=3, x=18;41xx=14,x=14,x=14, x=18;423xx=,x=,x=, x=;43=, 2.4x=720.26, 2.4x=18.72,2.4x2.4=18.722.4, x=7.8;441.2:=,x=1.25,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;47x=+1, x=, x=148 125%X+25%x=+25%x,0.25x+0.250.25=10.25, 0.25

15、x=0.75, x=3;49=, 0.25x=1.251.6,0.25x0.25=1.251.60.25, x=8;50X=,X=, x=;51 5:8=x:32, 8x=532,8x8=5328, x=20522x+30.9=24.9, 2x+2.7=24.9, 2x+2.72.7=24.92.7, 2x2=22.22, x=11.1;535.3x2.9x=, 2.4x=, 2.4x2.4=2.4, x=;5472.8x=1.5,72.8x=1.5, 72.8x=2.1, 72.8x+2.8x=2.1+2.8x, 72.1=2.1+2.8x2.1, 4.92.8=2.8x2.8, x=1.7

16、5;55x:0.3=:,x=0.3,x=, x=56150%x+66=99 1.5x+66=99 1.5x=33 x=2257x+60.8x=16 0.2x+6=16 0.2x=10 x=5058 x=14.459 0.55x=5.5 x=10603X=1.33Xx=1.3x, 3=1.3x0.78, 3+0.78=1.3x0.78+0.78, 4.68=1.3x, 4.681.3=1.3x1.3, x=3.6;61X+0.5:2=X4:,x4=x+0.5,x4=x+0.5,x10x=x+x, 2.25x10+10=0.125+10, 2.25x2.25=10.1252.25, x=4.562

17、 X0.05=3.528,X0.050.05=3.5280.05, X=0.1764;632X46=80, 2X24=80, 2X24+24=80+24, 2X=104, 2X2=1042, X=52;6444.53X=6.38, 183X=6.38, 183X+3X=6.38+3X, 6.38+3X=18,6.38+3X6.38=186.38, 3X=11.62, 3X3=11.623, X=;654X7.2=10,4X7.2+7.2=10+7.2, 4X=17.2, 4X4=17.24, X=4.3;6611.5X+X=20, 12.5X=20,12.5X12.5=2012.5, X=1.

18、6;673.812+15X=87.6, 45.6+15X=87.6,45.6+15X45.6=87.645.6, 15X=42, 15X15=4215, X=2.8686X+5=17, 6x+55=175, 6x6=126, x=2;690.62.5+X=4.2,0.62.5+X0.6=4.20.6, 2.5+x=7, 2.5+x2.5=72.5, x=4.5;70:=X:,x=,x=, x=0.671,;72,;73,744+x=,+4x=,+4x=, 4x=4, x=1;750.25+x=, 0.2+x=, 0.2+x0.2=0.2,x=, x=76x, x=;77200:6=x:, 6x

19、=200, 6x6=4806, x=80784X=, 4XX=X,X=4,X=4, X=10;798x2=2x+7, 8X16=2X+14, 6X16=14, 6X=30, X=5;80:18%=,X=0.186.5,X=1.17, X=7.8812x=,2x+2x=+2x,+2x=,+2x=, 2x=, 2x2=2, x=;82x+x=46, x+=46,x=46,x=46, x=40;83:x=:,x=,x=,x=, x=;84=, 1.6x=6.42, 1.6x=12.8,1.6x1.6=12.81.6, x=88553x42x1=52x1 15x202x+2=10x5, 13x18=1

20、0x5, 13x1810x=10x510x, 3x18=5, 3x18+18=5+18, 3x=13, 3x3=133, x=;86=, 36x1=64, 18x3=64, 18x3+3=64+3, 18x=67, 18x18=6718, x=8782X7=5X+13, 16x56=5x+65, 16x565x=5x+655x, 11x56=65, 11x56+56=65+56, 11x=121, 11x11=12111, x=11,883x+4.5=60, 3x+4.53=603, x+4.5=20, x+4.54.5=204.5, x=15.5891.6x+2.4=7.52, 1.6x+2

21、.42.4=7.522.4, 1.6x=5.12, 1.6x1.6=5.121.6, x=3.2;903x0.8=6.3, 3x2.4=6.3, 3x2.4+2.4=6.3+2.4, 3x=8.7, 3x3=8.73, x=2.9;9128.45x=5.8, 28.45x+5x=5.8+5x, 5.8+5x=28.4, 5.8+5x5.8=28.45.8, 5x=22.6, 5x5=22.65, x=4.5292)x:= 25x=3, 25x=, 25x25=, x=;93+2x=,+2x=, 2x=0, x=0;94x=15%,xx=15%x, 0.15x=0.15,0.15x0.15=0.

22、150.15, x=1;95xx=,x=,x=, x=96x+50%x=6, 1.5x=6, 1.5x1.5=61.5, x=4;97:x=0.3:12, 0.3x=, 0.3x0.3=90.3, x=30;984x+28x=26, 4x+162x=26, 2x+16=26, 2x+1616=2616, 2x2=102, x=599x=0,x+=0+,x=,x3=3, x=;100+x=1,+x=1,x=,x=, x=1;101x+=,x=,x=, x=102, 3x3=, x=;103, x=20;104x, x=;105x,x, x=1065x+35=650, 5x+3535=65035,

23、 5x=615, 5x5=6155, x=123;1077203x=80, 7203x3x=803x, 240x=720, 240x240=720240, x=3;1083.6x0.9x=8.1, 3.60.9x=8.1, 2.7x=8.1, 2.7x2.7=8.12.7, x=3;10944.53x=6, 183x=6, 183x+3x=6+3x, 6+3x=18, 6+3x6=186, 3x=12, 3x3=123, x=4110=, 2.5x=100.8, 2.5x2.5=82.5, x=3.2;111631.8X=7.2, 181.8X=7.2, 181.8X+1.8X=7.2+1.8

24、X, 7.2+1.8X=18, 7.2+1.8X7.2=187.2, 1.8X=10.8, 1.8X1.8=10.81.8, X=6112x=, x=, x=;113x=42, x=42, x=9;114x+=,x+=,x=,x=, x=1157x3=8.19, 7x33=8.193, 7x=24.57, 7x7=24.577, x=3.51;11612:0.6=x:, 0.6x=12, 0.6x=6, 0.6x0.6=60.6, x=10;1173x+2=4x+1, 3x+6=4x+4, 3x+63x=4x+43x, x+4=6, x+44=64, x=2(118)3x70%x=9.2, 3

25、x0.7x=9.2, 2.3x=9.2, 2.3x2.3=9.22.3, x=4;(119) 6+x=240,6+x6=2406,x=234,x=234, x=39012022.50.4x=12.5, 22.50.4x+0.4x=12.5+0.4x, 12.5+0.4x=22.5, 12.5+0.4x12.5=22.512.5, 0.4x0.4=100.4, x=25;121x:3.5=4:2, 2x=3.54, 2x2=142, x=6122x0.8x6=16, 0.2x6=16, 0.2x6+6=16+6, 0.2x0.2=220.2, x=110;123:=x:8,x=8,x=8, x=4;124, 0.06x=20.015, 0.06x0.06=0.030.06, x=0.5;125x:15=:,x=15,x6=156, x=40;126x+x=,x=,x=, x=;127x50%x=5,x=5,x6=56, x=30;1281x=, 1x+x=+x,+x=1,+x=1,x=, x=;1292.5+1x=3, 2.5+1x2.5=32.5,x=,

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