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1、-六年级解方程200题-第 7 页六年级解方程200题X X= 2X + = 70%X + 20%X = 3.6X=20 25% + 10X = X - 15%X = 68XX121 5X3 X126X5 =13.4 3X=X= XX= 4X6=2X= X = X = X = 4x3 9 = 29 x + x = 4X21=4 6X5 =13.4 X-X= 46385X= X= X=X=12 X= X=X= X-0.25= =30% 4+0.7X=102 X+X=42 X+X=105 X-X=400 X-0.125X=8 = X+X=18 X( + )= x0.375x= x+=4 XX12
2、5 X2.4580.365- x = (x- 4.5) = 7 x- 25%x = 10x- 0.8x = 16+6 20 x 8.5= 1.5 x- x -4= 21 X25%X=90 XX= (1)+2.4=6(2)3.5: =5:4.2(3)1.8=2.4(4)=(5)631.8=7.2(6)175=2.4+3 (7)= (8) =(9)12.62=8(10)=(11)= (12) +50%=42(13)413=31(14)4.5+8=27(15)2+4.33=14(16) (1)1(17)(18)342.5(19)(20)1.6:(21)3163102(22)x:1:(23)47.11
3、2.5(24):0.6:4(25)::(26) 0.329.1(27)(28)x(29) : :(30): :(31)3+2(32):0.3: (33)13189.2(34):0.2580: (35)47.112.5(36)(37)(38):12(39) =(40) :=12:3(41)2.40.452=0.342):=:0.1(43)6.35=4.1(44)1.25:5=0.75:(45):=:6(46)2.5=0.6(47) =(48): =:(49)=(50)+1.2=3.4(51)4:6=15:(52):=:(1)+2.4=6(2)3.5: =5:4.2(3)1.8=2.4(4)=(5
4、)631.8=7.2(6)175=2.4+3 (7)= (8) =(9)12.62=8(10)=(11)=(12) +50%=42(13)413=31(14)4.5+8=27(15)2+4.33=14(16) (1)1(17)(18)342.5(19)20)1.6:(21)3163102(22)x:1:(23)47.112.5(24):0.6:4(25)::(26) 0.329.1(27)(28)x(29) : :(30): :(31)3+2(32):0.3: (33)13189.2(34):0.2580: (35)47.112.5(36)(37)(38):12(39) =(40) :=12:3(41)2.40.452=0.3(42):=:0.1(43)6.35=4.1(44)1.25:5=0.75:(45):=:6(46)2.5=0.6(47) =(48): =:(49)=(50)+1.2=3.4(51)4:6=15:(52):=: