六年级下册解方程和解比例练习题.docx

六年级下册解方程和解比例练习题 x = 0.24x1.8=4.2 x = x21=4 x=12 3.6x22.16x -x = 4 x638 x = x= x + x = 4 x x12x -25% x=10 xx = 4x3 9 = 29 x0.25= 4+0.7x =102 x =解比例:x:10=: 0.4:x=1.2:2 =:=:x 0.8:4=x:8 :x=3:121.25:0.25=x:1.6 = =x: =6: = 45:x=18:262.8:4.2=x:9.6 :x=: 2.8:4.2=x:9.6x:24= : 8:x=:=x: 2 / 2