六年級(jí)上冊(cè)解方程練習(xí)

1、六年級(jí)上冊(cè)解方程練習(xí)班姓名 成績(jī)25% + 10X =4 X - 15%X = 6856X+ 5 =13.43x J3X=7 16+ 7X=34X - 6 x 2=235X-3 x = 5-X-1 = 1221734X+ 3X= 1218-X=3 X =258 X =1 X少57296514x-3 X 9 = 291x +1-x = 426 = 26 x 匹35452516 / 14Ax- 21 x 2=4x 丄 x = 202(x-2.6) =810342136X+ 5 =13.45 X-3 X=104X 6 = 385X=空x=X.4_15-. 一1921155 282X一 1=123X=

2、258x=l x 蘭345729651X . 6 =26 .13X-0.25=1X=30%354525444+0.7X=1022 X+- X=42X+1 X=105324X- 3X=4008X-0.125X=836 =3X 4X+7 X=181313X ( 6 + 8)=P x-0.375x= 6x X 2 + l=4X -328X - 3x= 1275 X - 2.4 X 5 = 82 (x- 4.5) = 712 x- 25%x = 1030.36 X 5- x =4x- 0.8x = 16+620 x-8.5= 1.5x-4 x -4= 2138小X+ 25%X=90X- 7 X= 9解

3、：(1) (12X 3/4+ 12X 2/3 ) x = 8/3(9 + 8) x = 8/317x=8/3x=8/3 一 17x=8/51(2 ) 7x/15 = 3/4 X 4/15 X 9/177x/15=9/85=9/85 - 7/15x= 27/119(3)( 15X 1/3 + 15X 2/5 ) x = 20(5 + 6) x = 2011x= 20x= 20-11x= 20/11(4) 2x - 3x/7 = 611x/7= 6x= 6- 11/7360一 ( 12+ 6)X 5288- ( 26- 14)X 8500X6-(50 X2 -80)(105X 12- 635) 一

4、 25 864- ( 27- 23)X 12(45 + 38- 16)X 24500-( 240 + 38 X 6)64 -(87 - 42) X 15(845- 15X 3) 一 1612X ( 49- 28) 一 7450- ( 84- 48 ) - 12(58+37)一( 64-9 X 5) 95-( 64-45 )178-145-5X 6+42812- 700一( 9+31X 11)85+14X( 14+208- 26)(284+16)X( 512-8208一 18)120- 36 X 4-18+35(58+37)一( 64-9 X 5)(6.8- 6.8 X 0.55) 一 8.50

5、.12 X 4.8 - 0.12 X 4.8(3.2 X 1.5+2.5 ) - 1.66-1.6 一4= 5.38+7.85 -5.37=7.2 - 0.8 -1.2 X 5= 6-1.19 X3 -0.43=6.5 X( 4.8- 1.2 X 4)=5.8 X( 3.87-0.13 ) +4.2 X 3.7432.52- (6+9.728 一 3.2 ) X 2.5(7.1-5.6 ) X 0.9-1.15 一 2.55.4 一 2.6 X( 3.7-2.9 ) +0.6212X 6-( 12-7.2 ) -612X 6-7.2 -60.68 X 1.9+0.32 X 1.9(58+370

6、) -( 64-45 )420+580-64 X 21-28(136+64) X( 65- 345-23)48.10.15- 10.75 X 0.4 -5.7 388+(5000-1000) 158+262+138 375+219+381+225 5001 - 247 - 1021 - 232(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 3065 - 738

7、- 1065 899+344 2357 - 183-317-357 2365 - 1086 - 214 497 - 299 2370+1995 3999+498 1883 - 398 12X 2575 X 24138X25X4(13 X 125) X (3 X 8)(12+24+80) X 50704 X 25 25 X 32 X 12532 X (25+125) 88 X 125102X 76 58 X 98178X 101- 17884 X 36+64X 8475X 99+2X 7583 X 102-83 X 298 X 199123X 18- 123X 3+85X 12350 X (34

8、 X 4) X 325X( 24+16)178X99+17879X 42+79+79X 577300-25-48100-4-7516800- 12030100- 210032000-40049700一 7001248一 243150一 154800-252356-( 1356 - 721)1235-( 1780- 1665)75X 27+19X 2 531 X 870+13X 3104X (25 X 65+25X 28)(181+2564) +2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+1017

9、99+999+9999+99755 (2187+755)2214+638+286 3065 - 738- 1065899+3442357 - 183 -317 -357 2365 - 1086 - 214497 - 2992370+19953999+4981883 - 39812X 25 75 X 24138X25X4(13 X 125) X (3 X 8)(12+24+80) X 50704 X 2525X 32 X 12532 X (25+1 25)88 X 125102X 7658 X 98178X 101- 17884 X 36+64X 8475X 99+2X 75 83 X 102-

10、83X 298 X 199123X 18- 123X 3+85X 12350 X (34 X 4) X 325X( 24+16)178X99+17879X 42+79+79X 577300-25-48100-4-7516800- 12030100一 210032000一 40049700一 7001248-243150- 154800-2521500- 1252356-( 1356 - 721)1235( 1780- 1665)75X 27+19X 2531 X 870+13X 3104X (25 X 65+25X 28)1 2x+3(9-x)=212x+3*9-3x=2127-x=21x=2

11、7-21x=62. (1- 25%)x=72x=72-75%75%x=72x=963. x-40%x=3.6(1 -40%)x=3.6x=3.6 一 60% x=66.2-( 1/4+ 1 /7 )X 4/ 11=2-11/ 28X 4/ 11=10/ 72x+3x=605x=60x=123.6x-2.8x=120.8x=12x=15100x-x=19899x=198x=218x+2x=60(問題里弄成+60 了 是等號(hào)吧?)20x=60x=35x+6x=12.111x=12.1x=1.16.6x-5x=81.6x=8x=54x-x=243x=24x=81.5x-x=10.5x=1x=21.9x+0.4x=9.22.3x=9.2x=425x-5x=10X 20-5X 2020x=100x=580x-4 0=(30x+40) X2 80x-40=60x+80 20x=120 x=680x-3200=60x+120020x=4400 x=2201.5 - 0.06 = 1.440.75 一 15= 0.05,0.4 X 0.8 = 0.32,420-35= 12,25X 12= 300,135-0.5 = 270 3/4 + 1/4 =1,3 - 2/3 =7/3, 3/4 - 1/2= 1/41/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7