六年级解方程及解比例练习题.pdf

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1、六年级解方程及解比例练习题4.24x1.8x=20 5x33258116x=0.24x1.8=4.2x=57296511455x-15%x=687212132x21=4x=123.6x22.1610334x 1x 2042(x 2.6)86 x5=13.43x50.3=4.51548213x-x=4 x6385 x=x=5310 x4=1552812x-25%x=10 x0.25=144x623=235x=2572x78x=344+0.7x=102125x=3101912x+16x=481169x=65123x+12x=429x 0.792115x37x124x3 9=2934x14388.8

2、4 x=4021327x12 3x=x=70%X+20%X=3.6348716x x121 25%+10 x=x-0.8 x=16+6xx4=2120 x 8.5=1.5x25%x=90(x-32)5=115xxx=2x+273423=553845452334解比例:x:10=:0.4:x=1.2:211123=4312:15=14:x 0.8:4=x:81.25:0.25=x:1.6x:2=6:243252.8:4.2=x:9.62=89x4.56x=2.2110:x=118:4 2.8:4.2=x:9.62.4x34:x=3:123654x=3 45:x=18:26x:24=3:1 8:x

3、=4:343540642.4x6x11533412x451112452536x1050 x401.3x5.22011320169x4.680.2x解方程X227 X=34 2X+35=5 70%X+20%X=3.658:16=x:1120.6121.5xx1140.7123.661838x64 xX=20 25%+10X=X-15%X=68X X121 5X335215X1235144586X5=13.4X2=7716 X125X=310X61335=264525217343134X 48 3X=3878X=324 4X63=2325815 X=729 X=61651x3 9=2912x+16

4、x=4 4321X21=4x x 202(x 2.6)810342136X5=13.4 X-X=46385X=1519213X4=12X6261335=45254+0.7X=10253108421X=15 X3255X=72142X+132X=42 X+4155=2889X=161651X4=30%14X=105 X-0.25=X-X=400 X-0.125X=83336=8X+313137 X=18 X(6+8)=12 xx2+1=43 X33287X120.365-34 x=3523(x-4.5)=7x-0.8x=16+6 20 x 8.5=1.5 x-X25%X=90 X37 X=89

5、XX40.375x=565 X2.45812 x-25%x=1045 x-4=21237 X=423312X+=70%X+20%X=3.6 X =205525%+10X=455X35521734X 1348 3X=X7X=384 4X23X1412 6X38 X623=25438X1215=13.427=716125X=310 X-15%X=68 X325811613626 X=X=X=5724x3 9=29x 14x 2025 X-13 X=310 48421X=15 X35X=257296511x+126x=42(x 2.6)8 6X638 5X=45=152881169X=651 X35

6、4525310X2123=45=13.4151923X14=1261335=264525X-0.25=1X=30%4+0.7X=10244213X+2X=42 X+14X=105 X-X-0.125X=8363X=4 X+X(16+38)=13512 x0.375x=6X37X12 5 X2.458 0.3638X=40037 X=182133+2=485-334 x=5 x21(x-4.5)=7 x-25%x=10 X25%X=90324x-0.8x=16+6 20 x 8.5=1.5 x-x-4=215382233X X=X X=2X+=797554 70%X+20%X=3.6 X=20

7、25%+10X=X-15%X=68 X X121 5X33855721351445313X 3X=34488X=27732 XX=4X6=27168431233258116X=X=X=510X635=26134525310X2123=46X5=13.45X=151923X14=125729651x3 9=29112x+6x=4x 14x 202(x 2.6)8215 X-3 X=310 46388441521X=15 X5=2835X=257289X=116651 4X131X626=X-0.25=30%254435454+0.7X=102X+X=42 X+X=105 X-X=400 X-0.125X=8313135X+X=18 X(+)=x0.375x=768126x+=4 XX125 X2.45833210.365-x=(x-4.5)=7 x-25%x=104532x-0.8x=16+6420 x 8.5=1.5 x-x-4=2152312383723121438336=4X