六年級解方程及解比例練習題

1、解比例: 六年級解方程及解比例練習題 1 1 x:10=:0.4:x=1.2:2 4 3 1.25:0.25=x:1.6 123111 =:=:x 2.4x254 2. 836.54 9xx3 3 :x=3:12 4 x: - =6: 24 25 45:x=18:26 28:42=x:96 1 1 1 :x= 10 8 4 a4 3 5 1 1 8:x= : =x: 0. 5 4 8 6 12 4.56 0.8:4=x:8= x2.2 28:42=x:96 6 : 4= 2.4 : x6 : x 3 1 x:24=: 4 3 1 . 1061.53 . 1. 4 5312 x 4 2 x 5

2、11 12 25 25 : xx : 1 14 07 : 110 50 = x : 40 1.3 : x = 5.2 : 20 x： 36= 6: 181 : 20= f : x 解方程 46 = 83 = x 0.2 = x8 = 64 X- 2 X=32X + 74 70%X + 20%X = 3.6 25% + 10X = X - 15%X = 68 X+ Y X= 121 5X 3X . X-丄-12 8 21 7 3 4 6X+ 5 =13.4 3X= 3 X 2 = 7 8 7 16 X+ - X=3 9 12 3 4X 一 - 6 X =2 5 X=d 門 84 3 10 3 x

3、 一25 8 x . _ 1 X 16 X - 亠6 . _26 X 13 572 9 6 51 35 4525 4x 3 X 9 = 29 1 x + 1 x = 4 32 3 X- 21 X 2 =4 2 6 10 3 2 1 3 6X + 5 =13.4 5 X- 3 X=10 4 X 6 38 5X=15 8 X=4 X 4 =15 8 X=1 X 16 X- 19 2115 5 28 9 6 51 31 XX -=20X 丄 54 13 25 1 X X-0.25二丄-=30% 4 4 6 26 . 3545 2 1 -X+- X=42 32 4+0.7X=102 3 7 X+ 13

4、 X+-X=105X- 3X=400X-0.125X=8 48 X+ 7 X=18 X X=18 13 x ( 6 + 8)= 13 0.375x= 5 x x 2 +2 =4x 632 X -X= 12 5 X 2.4 x 5= 80.36 3 x 5-x 7 4 12 x 2 x- 25%x = 10 x- 0.8x = 16+6 3 2 3 2(X- 45)= 7 20 x 8.5= 1.5 4 x- x -4= 5 21 X+ 25%X=90 38 X 7 X= 8 |X=3 74 2 2X + 2 = 70%X + 20%X = 3.6 X X - 15%X= 68 X =12 6X

5、 + 5 =13.4 7 X=3 X 4X - -6x 2 =2 84 3 16 6 26 13 X I x 51 35 45 25 x 3 3=20 x 1 25% + 10 X = 4 5 4 5 + 3X= 12 1 5X 3x 5 = 5 2X 1 8 21 7 3 4 3X= 3 X 2 7 X + 8 7 16 12 X= 3 3、， _25 8 X 1 5 =TT -X : x 10 5 72 9 6 4 x 3 x 9 =29 1 x + 1 -x = 4 2 6 32 -X 21 x 2 =4 103 6X 213 +5 =1345 X-3 X= 4 X 6 = 385X=

6、15 8 X=- 19 21 15 3、，25 8、，1 16 3X=25 8X= x X 572 96 51 X-0.25= 1 X =30% 4+0.7X=102 4 4 2 1 2X+1X=42 X+ 丄 X=105 32 4 X-0.125X=8 36 =3 4 4 15 21 X寧=X寧=12 5 28 34 + 空二空 + 13 3X=25 2X+ 1=12 35 = 45 25 5=72 3* 4 = 3 X-3 X=400 8 13 12 13 XX( 6 + 8)= 0.375X二 X 3X= 12 7 2.4 X 5= 8 0.36 3 (x- 4.5) = 7 1 2 x

7、- 25%x = 10 + 25%X=90 x- 0.8x = 16+6 20 x 8.5= 1.5 x- 4 x -4= 21 5 38 X 7 X= 8 X 2 x=e 7 4 2X + X+7 X=18X 31 70%X + 20%X = 3.6X X 3=20X 125% + 10X = 5 4 5 X - 15%X = :68X + 3 -X= 121 5X 3X 5 = 5 8 21 7 3 3X=3 X - .2 = r 一 7 X + 7X=? 4X 6X -=2 8 7 16 84 3 12 3 3、， 25 1 16 X= 3 X 8 X = 1 X 16 5 10 5 7

8、2 9 651 6 26 13 1 1 X寧 X 4 x 3 X 9 = 29 -x + -x : =4 3545 25 2 6 321 X 21 X 2 =4x 丄 x =20 2(x 2.6) =8 1034 6X+ 5 =13.4 213 2 X-3 X=13)4 x 0.375x=- = 38 5X=& A X二 19 2115 2X- ! = 12 34 6 26 X寧 = 3545 13 25 3x=25 572 X-0.25= 4+0.7X=102 3 X-3X=400 8 4 _15 5 1 28 8X=1 X 16 9 51 X =30% 4 2 1 2X+X=42 32 X

9、-0.125X=8 X+ 1 1X=105 4 36 X 13 X ( 6 + 8 )= 13 12 5 X 2.4 x 5= 8 1 2 x- 25%x = 10 xx 2 +1 =4X 3 328 3 0.36 x 5- x = 4 X 3X= 12 7 3 2 5 3 (x- 4.5) = 7 x- 0.8x = 16+6 20 x 8.5= 1.5 x- 4 x -4= 21 5 計算下面各題, 能簡算的要簡算 5X 4 4 ) x 27 (8 +27 (20 I 6 X 5- 9 + 5- 9 X 5- 6 6 X 613 3 - 4 X + 3 - 4 X 3 3 6 3、 21 x20 37x35 方x 24 (5