人教版小学六年级解比例及解方程练习题.pdf

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1、人教版六年级解方程及解比例练习题人教版六年级解方程及解比例练习题解比例解比例:x:10=:0.4:x=1.2:211123=431112:5=4:x 0.8:4=x:81.25:0.25=x:1.6x:2=6:24325 2.8:4.2=x:9.6x:24=3:143 8:x=2=89x4.5x=62.211110:x=8:44:3542.4x34:x=3:1236x=5435118:6=x:12 45:x=18:26110642.4x6x,12),x)533141142511 x xx0.7425125361050 x401.3x5.220131201689x ,0.2)x解方程解方程X X

2、2 22 23 37 7 X=X=34 2X+2X+5 5=5 5X X3=20=201 25%+10X=25%+10X=4545 X-15%X=68 X-15%X=681423.661838x64 xX X X X121 5X121 5X3 335215X X121286X6X5=13.45=13.4X X2=7716 X X12125 5X=X=3 31010X X6261335=45253210X X21213=4=42173434X 13348 3X=3X=87328X=X=4 4X 4X6 63=2=23255 X=X=7289 X=X=161651x x3 3 9=299=2911

3、2x x+6x x=4=4x 14x 202(x 2.6)8 4 42 21 13 36X6X5=13.45=13.4 X-X-X=X=4 46 638385X=5X=151923X X14=12=12X X6261335=45254+0.7X=1024+0.7X=1025 53 310108421X=X=15 X X3255X=X=72142X+X+132X=42 X+X=42 X+4155=2889X=X=161651X4=30%=30%14X=105X=105 X-0.25=X-0.25=X-X-X=400 X-0.125X=8X=400 X-0.125X=83336=8X+X+3 37

4、 7 X=18 X X=18 Xx x2+1=4=433285-334 x=5xx=16+6 20 xX25%X=90 XX4(1 13 3131356 6+8 8)=)=1212 x x0.375x=0.375x=6 X37X125 X58213(x-4.5)=72 x-25%x=10 8x-x-4 45 5 x-4=21 x-4=2137 X=89 X237 X=423312X+=70%X+20%X=3.6 X =205525%+10X=455X35521734X 1348 3X=X738X=4 4X23X1412 6X38 X623=25438X1215=13.427=716125X=3

5、10 X-15%X=68 X325811613626 X=X=X=57296512535454x3 9=29x+x=41132X21=4x 14x 2025 X-13 X=310 48421X=15 X3255X=72262(x 2.6)8 6X638 5X=4155=2889X=116651 X1035=13.4151923X14=126261335=4525X-0.25=14X=30%4+0.7X=10242113X+X=42 X+X=105 X-X=400324X-0.125X=8363X=4 X+X(131356+8)=12 x0.375x=6 xX37X12 5 X58213(x-4

6、.5)=72 x-25%x=10 X837 X=1823+12=4385-334 x=525%X=904xx=16+6 20 x x-x-4=215382 22 23 33X X=X X X=X=2X+2X+=797 75 55 54X X=20=20 25%+10X=25%+10X=X-15%X=68X-15%X=68X X X X121 5X121 5X3 33855721351445313X 3X=3X=34488X X=277732 X XX=X=4X 4X6 6=2=21684312123 33258116X=X=X=X=X=X=5 510105729651X X1311626=4

7、4x x3 3 9=299=29x x+x x=4=4354525310X X212123=4=46X6X5=13.45=13.45X=5X=151923X X14=12=12x 14x 202 25 5 X-X-1 13 3 X=X=3 31010 4 48421X=X=15 X X35X=X=2572262(x 2.6)86 638384155=2881169X=X=651X X131X626=X-0.25=X-0.25=30%=30%254435454+0.7X=1024+0.7X=102X+X+X=42 X+X=42 X+X=105X=105211 X-X-38X=400 X-0.125X=8X=400 X-0.125X=8X+X+3 37 7 X=18 X X=18 Xx x2+1=4=433285-334 x=5xx=16+6 20 x324363X=4(1 13 3131356 6+8 8)=)=1212 x x0.375x=0.375x=6 X37X125 X5823(x-4.5)=712 x-25%x=10 x-x-4 45 5 x-4=21 x-4=21