最新五年级解方程练习题答案ok(总6页)--本页仅作为文档封面,使用时请直接删除即可-- --内页可以根据需求调整合适字体及大小--
50题及
五年级解方程50题有答案
(1)+x)+x=÷2
(2)2(X+X+=
(3)25000+x=6x
(4)3200=440+5X+X
(5)=6
(6)12x-8x=
(7) +2X=15
2
(8)= (7)x+=
(10)= (11)91÷x= (12) X+=
(13) 15x=3 (14) 3x-8=16
(15) 3x+9=27
(16) 18(x-2)=270
(17) 12x=300-4x
(18) 7x+=
(19) 3x÷5=
(25) +8=43
(26) 6x-3x=18
(27) 7+x)=
(28) ÷x=
3
(29) =
(30) x÷=90
(31) (x+6)=×
(32)
(33) 9x-40=5
(34) x÷5+9=21
(35) 48-27+5x=31
(36) +x+21=56
(37) x+2x+18=78
(38) (200-x)÷5=30
(39) (x-140)÷70=4
(40) 20-9x=2
(41) x+=
(42) =
(43) =
(44) ÷x=
(45) 5x+=
4
(46) 5(x+8)=102 (47) x+3x+10=70
(48) 3(x+3)=50-x+3
(1)+x)+x=÷2 +2x= += 2x= 2x÷2=÷2 X= (2)2(X+X+= 2x+2x+1= 4x+1-1= 4x= 4x÷4=÷4
X=
(3)25000+x=6x 25000+x-x=6x-x
5x=25000 5x÷5=25000÷5 X=5000
(4)3200=440+5X+X 6x+440=3200 6x+450-450=3200-440 6x=2760 6x÷6=2760÷6
X=460
(5)=6
(49) 5x+15=60
(50) =2
五年级解方程50题答案 =6 ÷=6÷ X=30
(6)12x-8x=
4x= 4x÷4=÷4 X= (7) +2X=15 2x+ 2x= 2x÷2=÷2 X= (8) = ÷=÷ X=68 (9) x+= X+ X= (10)= = ÷=÷
X=12
(11)91÷x= 91÷x×x=×x =91
5
÷=91÷ X=70 (12) X+= X+
X=
(13) 15x=3 15x÷15=3÷15
X=
(14) 3x-8=16 3x-8+8=16+8 3x=24 3x÷3=24÷3 X=8 (15) 3x+9=27 3x+9-9=27-9 3x=18 3x÷3=18÷3 3x=6 (16) 18(x-2)=270 18x-36=270 18x-36+36=270+36 18x=306 18x÷18=306÷18 X=17 (17) 12x=300-4x 12x+4x=300-4x+4x 16x=300 16x÷16=300÷16 X= (18) 7x+= 7x+ 7x= 7x÷7=÷7 X= (19) 3x÷5= 3x÷5×5=×5 3x=24 3x÷3=24÷3 X=8 (20) 30÷x+25=85 30÷x+25-25=85-25 30÷x=60 30÷x×x=60×x 30=60x 60x÷60=30÷60
X= (21) ×8-2x=6 +2x=6+2x =6+2x 2x+6-6=
2x= 2x÷2=÷2 X= (22) ×3= = 6x= 6x÷6=÷6 X= (23) 410-3x=170 410-3x+3x=170+3x 170+3x=410 3x+170-170=410-170 3x=240 3x÷3=240÷3 X=80 (24) 3(x+=21 3x+=21 3x+ 3x= 3x÷3=÷3 X= (25) +8=43 +8-8=43-8 =35 ÷=35÷ X=70 (26) 6x-3x=18 3x=18 3x÷3=18÷3 X=6 (27) 7+x)= 7x+= 7x+ 7x=42 7x÷7=42÷7 X=6 (28) ÷x= x=÷ X=
6
(29) = ÷=÷ X=
(30) x÷=90 x÷×=90× X= (31) (x+6)=× += + = ÷=÷ X= (32) 24÷x=4 x=24÷4 X=6 (33) 9x-40=5 9x-40+40=5+40 9x=45 9x÷9=45÷9 X=5 (34) x÷5+9=21 x÷5+9-9=21-9 x÷5=12 x÷5×5=12×5 X=60 (35) 48-27+5x=31 5x+21-21=31-21 5x=10 5x÷5=10÷5 X=2 (36) +x+21=56 x+ x= (37) x+2x+18=78 3x+18-18=78-18 3x=60 3x÷3=60÷3 X=20 (38) (200-x)÷5=30 (200-x)÷5×5=30×5 200-x=150 200-x+x=150+x 150+x=200 X+150-150=200-150
X=50
(39) (x-140)÷70=4 (x-140)÷70×70=4×70 X-140=280 X-140+140=280+140 X=420 (40) 20-9x=2 9x=20-2 9x=18 9x÷9=18÷9 X=2 (41) x+= X+ X=6
(42) = ÷=÷ X=6
(43) = +x=+x +x= X= X=6 (44) ÷x= X=÷ X=6
(45) 5x+= 5x+ 5x= 5x÷5=÷5 X= (46) 5(x+8)=102 5x+40=102 5x+40-40=102-40 5x=62 5x÷5=62÷5 X= (47) x+3x+10=70 4x+10=70 4x+10-10=70-10 4x=60 4x÷4=60÷4 X=15 (48) 3(x+3)=50-x+3
7
3x+9=53-x 3x+x+9-9=53-x+x-9 4x=44 4x÷4=44÷4 X=11
(49) 5x+15=60 5x+15-15=60-15 5x=45 5x÷5=45÷5 X=9 (50) =2 +5x=2+5x 5x+2= 5x+2-2= 5x= 5x÷5=÷5 X=
8
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