五六年级数学解方程解比例练习题精选.doc

(1) 3.5X1.812.3 (5) XX21 (6) XX(7) 3.6X22.16 (8) XX (2) 0.8X41.6 (3) 5X210 (4) X0.25X3 (9) XX(10) X (11) 2X7X (12) X(13) X (14) X (15) X10(16) 1806X330 (17) 2.2X110 (18) X0.8X10(19) 15X260 (20) 4XX3.15 （21）3.4X1.88.6(22) 5XX2.4 (23) 1.5XX1 (24) 6.6X6X1.8(25) 2XX (26)+2.4=6 (27)3.5: =5:4.2(28)1.8=2.4 (29)= (30)631.8=7.2(31)175=2.4+3 (32)= (33) =(34)12.62=8 (35)= (36)=(37) +50%=42 (38)413=31 (39)4.5+8=27(40)2+4.33=14 (41) (1)1 （42）（43）342.5 （44） （45）1.6：（46）3163102 （47）x：1： （48）47.112.5（49）：0.6：4 （50）：: (51) 0.329.1(52) (53)x (54) : :(55): : (56)3+2 (57):0.3: (58)13189.2 (59):0.2580: (60)47.112.5(61) (62) (63):12(64) = (65) :=12:3 (66)2.40.452=0.3(67):=:0.1 (68)6.35=4.1 (69)1.25:5=0.75:(70):=:6 (71)2.5=0.6 (72) =(73): =: (74)= (75)+1.2=3.4(76)4:6=15: (77):=: (78) X=(79)6X5 =13.4 (80) (81) 3X=(82)X= (83)XX= (84) 4X6=2 (85)X= (86) X = (87) X = (88)X = (89)4x3 9 = 29 (90)x + x = 4(91)X21=4 (92) (93)(94)6X5 =13.4 (95)X-X= (96) 4638(97)5X= (98)X= (99)X=20