计算:
1.125*3+125*5+25*3+25
2.9999*3+101*11*(101-92)
3.(23/4-3/4)*(3*6+2)
4. 3/7 × 49/9 - 4/3
5. 8/9 × 15/36 + 1/27
6. 12× 5/6 – 2/9 ×3
7. 8× 5/4 + 1/4
8. 6÷ 3/8 – 3/8 ÷6
9. 4/7 × 5/9 + 3/7 × 5/9
10. 5/2 -( 3/2 + 4/5 )
11. 7/8 + ( 1/8 + 1/9 )
12. 9 × 5/6 + 5/6
13. 3/4 × 8/9 - 1/3
14. 7 × 5/49 + 3/14
15. 6 ×( 1/2 + 2/3 )
16. 8 × 4/5 + 8 × 11/5
17. 31 × 5/6 – 5/6
18. 9/7 - ( 2/7 – 10/21 )
19. 5/9 × 18 – 14 × 2/7
20. 4/5 × 25/16 + 2/3 × 3/4
21. 14 × 8/7 – 5/6 × 12/15
22. 17/32 – 3/4 × 9/24
23. 3 × 2/9 + 1/3
24. 5/7 × 3/25 + 3/7
25. 3/14 ×× 2/3 + 1/6
26. 1/5 × 2/3 + 5/6
27. 9/22 + 1/11 ÷ 1/2
28. 5/3 × 11/5 + 4/3
29. 45 × 2/3 + 1/3 × 15
30. 7/19 + 12/19 × 5/6
31. 1/4 + 3/4 ÷ 2/3
32. 8/7 × 21/16 + 1/2
33. 101 × 1/5 – 1/5 × 21
34.50+160÷40
35.120-144÷18+35
36.347+45×2-4160÷52
37(58+37)÷(64-9×5)
38.95÷(64-45)
39.178-145÷5×6+42
40.812-700÷(9+31×11)
41.85+14×(14+208÷26)
43.120-36×4÷18+35
44.(58+37)÷(64-9×5)
45.(6.8-6.8×0.55)÷8.5
46.0.12× 4.8÷0.12×4.8
47.(3.2×1.5+2.5)÷1.6
48.6-1.6÷4= 5.38+7.85-5.37=
49.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
50.6.5×(4.8-1.2×4)=
51.5.8×(3.87-0.13)+4.2×3.74
52.32.52-(6+9.728÷3.2)×2.5
53.[(7.1-5.6)×0.9-1.15] ÷2.5
54.5.4÷[2.6×(3.7-2.9)+0.62]
55.12×6÷(12-7.2)-6
56.12×6÷7.2-6
57.0.68×1.9+0.32×1.9
58.58+370)÷(64-45)
59.420+580-64×21÷28
60.136+6×(65-345÷23)
15-10.75×0.4-5.7
62.18.1+(3-0.299÷0.23)×1
63.(6.8-6.8×0.55)÷8.5
64.0.12× 4.8÷0.12×4.8
65.(3.2×1.5+2.5)÷1.6
66.3.2×6+(1.5+2.5)÷1.6
67.0.68×1.9+0.32×1.9
68.10.15-10.75×0.4-5.7
69.5.8×(3.87-0.13)+4.2×3.74
70.32.52-(6+9.728÷3.2)×2.5
71.[(7.1-5.6)×0.9-1.15] ÷2.5
72.5.4÷[2.6×(3.7-2.9)+0.62]
73.12×6÷(12-7.2)-6
74.12×6÷7.2-6
75.33.02-(148.4-90.85)÷2.5
1) 76.(25%-695%-12%)*36
77./4*3/5+3/4*2/5
78.1-1/4+8/9/7/9
79.+1/6/3/24+2/21
80./15*3/5
81.3/4/9/10-1/6
82./3+1/2)/5/6-1/3]/1/7
83./5+3/5/2+3/4
84.(2-2/3/1/2)]*2/5
85.+5268.32-2569
86.3+456-52*8
87.5%+6325
88./2+1/3+1/4
2) 89+456-78
3) 5%+. 3/7 × 49/9 - 4/3
4) 9 × 15/36 + 1/27
5) 2× 5/6 – 2/9 ×3
6) 3× 5/4 + 1/4
7) 94÷ 3/8 – 3/8 ÷6
8) 95/7 × 5/9 + 3/7 × 5/9
9) 6/2 -( 3/2 + 4/5 )
10) 8 + ( 1/8 + 1/9 )
11) 8 × 5/6 + 5/6
12) 1/4 × 8/9 - 1/3
13) 10 × 5/49 + 3/14
14) 1.5 ×( 1/2 + 2/3 )
15) 2/9 × 4/5 + 8 × 11/5
16) 3.1 × 5/6 – 5/6
17) 4/7 - ( 2/7 – 10/21 )
18) 19 × 18 – 14 × 2/7
19) 5 × 25/16 + 2/3 × 3/4
20) 4 × 8/7 – 5/6 × 12/15
21) 7/32 – 3/4 × 9/24
22) 1、 2/3÷1/2-1/4×2/5
2、 2-6/13÷9/26-2/3
3、 2/9+1/2÷4/5+3/8
4、 10÷5/9+1/6×4
5、 1/2×2/5+9/10÷9/20
6、 5/9×3/10+2/7÷2/5
7、 1/2+1/4×4/5-1/8
8、 3/4×5/7×4/3-1/2
9、 23-8/9×1/27÷1/27
10、 8×5/6+2/5÷4
11、 1/2+3/4×5/12×4/5
12、 8/9×3/4-3/8÷3/4
13、 5/8÷5/4+3/23÷9/11
23) 1.2×2.5+0.8×2.5
24) 8.9×1.25-0.9×1.25
25) 12.5×7.4×0.8
26) 9.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5
0.35×1.6+0.35×3.4
0.25×8.6×4
6.72-3.28-1.72
0.45+6.37+4.55
5.4+6.9×3-(25-2.5)2×41846-620-380
4.8×46+4.8×54
0.8+0.8×2.5
1.25×3.6×8×2.5-12.5×2.4
28×12.5-12.5×20
23.65-(3.07+3.65)
(4+0.4×0.25)8×7×1.25
1.65×99+1.65
27.85-(7.85+3.4)
48×1.25+50×1.25×0.2×8
7.8×9.9+0.78
(1010+309+4+681+6)×12
3×9146×782×6×854
5.15×7/8+6.1-0.60625
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 × 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
31.50+160÷40 (58+370)÷(64-45)
32.120-144÷18+35
33.347+45×2-4160÷52
34(58+37)÷(64-9×5)
35.95÷(64-45)
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷(9+31×11) (136+64)×(65-345÷23)
38.85+14×(14+208÷26)
39.(284+16)×(512-8208÷18)
40.120-36×4÷18+35
41.(58+37)÷(64-9×5)
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×(3.87-0.13)+4.2×3.74
50.32.52-(6+9.728÷3.2)×2.5
51.[(7.1-5.6)×0.9-1.15] ÷2.5
52.5.4÷[2.6×(3.7-2.9)+0.62]
53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6
102×4.5
7.8×6.9+2.2×6.9
5.6×0.25
8×(20-1.25)
1)127+352+73+44 (2)89+276+135+33
(1)25+71+75+29 +88 (2)243+89+111+57
9405-2940÷28×21
920-1680÷40÷7
690+47×52-398
148+3328÷64-75
360×24÷32+730
2100-94+48×54
51+(2304-2042)×23
4215+(4361-716)÷81
(247+18)×27÷25
36-720÷(360÷18)
1080÷(63-54)×80
(528+912)×5-6178
8528÷41×38-904
264+318-8280÷69
(174+209)×26- 9000
814-(278+322)÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷(630÷7)
285+(3000-372)÷36
1+5/6-19/12
3x(-9)+7x(-9
(-54)x1/6x(-1/3)
1.18.1+(3-0.299÷0.23)×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.8
4.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
5.6-1.6÷4= 5.38+7.85-5.37=
6.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
7.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
8.10.15-10.75×0.4-5.7
9.5.8×(3.87-0.13)+4.2×3.74
10.32.52-(6+9.728÷3.2)×2.5
11.[(7.1-5.6)×0.9-1.15] ÷2.5
12.5.4÷[2.6×(3.7-2.9)+0.62]
13.12×6÷(12-7.2)-6
14.12×6÷7.2-6
15.33.02-(148.4-90.85)÷2.5
1. (25%-695%-12%)*36
2. 3/4*3/5+3/4*2/5
3. (1-1/4+8/9)/7/9
4 2/3+1/6/3/24+2/21
5 1*8/15*3/5
6 10-3/4/9/10-1/6
7 [(1/3+1/2)/5/6-1/3]/1/7
8 2/3/5+3/5/2+3/4
9 1/[(2-2/3/1/2)]*2/5
10 3^2*3.25678
11 3^3-5
12 4^2-34%
13 3.25-315%
14 7^3+445%
15 12+5268.32-2569
16 123+456-52*8
17 45%+6325
18 1/2+1/3+1/4
19 789+456-78
20 45%+54%-36%
2+1/[1-(3/4)]
(3/4)*(2/5)/(3/4)*(2/5)
4/(1/5)-(1/5)/4
(16/5)/(5/9)*(5/16)
[(3/4)-(1/2)-(1/6)]*12
3/(3/4)-(3/4)/3
[(5/6)-(2/3)]/[2-(1/2)]
2又(1/3)+1又(4/21)+5又(2/3)
9又(1/6)+3又(3/20)+6又(5/6)
3又(5/9)+6又(7/13)+4又(6/13)
2又(1/8)+7又(8/15)+2又(1/15)
2又(1/15)*5+7又(7/8)
4又(2/5)-2又(1/2)+3又(1/4)
7又(3/8)+[12-2又(7/12)]
4又(2/9)+5又(2/15)
3又(12/17)+5又(5/17)
1又(5/16)+8又(5/6)
9又(2/7)-4又(6/17)
(12/19)*(18/27)
(45/15)+(75/15)-(25/15)
解比例:
1.38:60=x:30
2.25:40=x:60
3.11:50=x:100
4.18:25=x:75
5.85:1664=x:6124
4分之X=8分之14
X分之7=8分之3
9分之8=X分之2
12分之X=4分之3
7:3.5=x:7
55:66=5:x
3:7=x:14
14:1=35:x
100:50=x:25
55:77=x:7
57:3=x:1
7:8=56:x
3:x=18:6
7:x=14:7
18:x=2:4
78:87=x:174
100:1000=x:10
1.1:2.2=3.3:x
9.8:8.9=x:115.7
3:2=9;x
21:14=3:x
3.6:0.6=x:3.6
9:81=X:40.5
500:1000=5:x
x:1/8=1/3:1/6
4右3/4:x=5:1/19
2右2/3:x=1/3:7
6右1/2:x=3.15:4
x:3/4=12:1/8
27:x=4.5:6
17:12=7:x
1.3:18=x:3.6
0.3:0.5=0.9:x
0.3:2X=1:6
50—X/4=0。8:1/2
49:(10—X)=14:2
1/15:1/5=1/X:1/3
2.4分之X=15分之5
1.05分之0.9=5.25分之X
7.4分之7=X分之0.25
4.5分之X=9分之2
15分之1:X=12F分之5
2分之1=10分之3:3分之1
7。5分之1:X分之0。4
8分之3:X=3:24
⑴X∶21=6∶14
⑵X∶4/5=5/12∶10
⑶26∶X=1∶2
⑷2∶120=1∶X
⑸5∶X=10∶15
⑹7.5/1.5=X∶3
⑺1/6∶1/3=1/5∶X
⑻X∶24=3∶8
⑼1/2∶1/3=X∶1/2
⑽12∶X=18∶6
⑾4∶8=5∶X
方程:
http://xxsx.dgjyw.com/UploadFiles/200812198590689.doc(1)2x+8=16
(2)x/5=10
(3)x+7x=8
(4)9x-3x=6
(5)6x-8=4
(6)5x+x=9
(7)x-8=6x
(8)4/5x=20
(9)2x-6=12
(10)7x+7=14
(11)6x-6=0
(12)5x+6=11
(13)2x-8=10
(14)1/2x-8=4
(15)x-5/6=7
(16)3x+7=28
(17)3x-7=26
(18)9x-x=16
(19)24x+x=50
(20)6/7x-8=4
(30)3x-8=30
(31)6x+6=12
(32)3x-3=1
(33)5x-3x=4
(34)2x+16=19
(35)5x+8=19
(36)14-6x=8
(37)15+6x=27
(38)5-8x=4
(39)7x+8=15
(40)9-2x=1
(41)4+5x=9
(42)10-x=8
(43)8x+9=17
(44)9+6x=14
(45)x+9x=4+7
(46)2x+9=17
(47)8-4x=6
(48)6x-7=12
(49)7x-9=8
(50)x-56=1
(51)8-7x=1
(52)x-30=12
(53)6x-21=21
(54)6x-3=6
(55)9x=18
(56)4x-18=13
(57)5x+9=11
(58)6-2x=11
(59)x+4+8=23
(60)7x-12=8
(61)X-5.7=2.15
(62)15 5X-2X=18
(62)3X 0.7=5
(63)3.5×2= 4.2 x
(64)26×1.5= 2x
(65)0.5×16―16×0.2=4x
(66)9.25-X=0.403
(67)16.9÷X=0. 3
(68)X÷0.5=2.6
(69)x+13=33
(70)3 - 5x=80
(71)1.8- 6x=54
(72)6.7x -60.3=6.7
(73)9 +4x =40
(74)0.2x-0.4+0.5=3.7
(75)9.4x-0.4x=16.2
(76)12 -4x=20
(77)1/3 x+5/6 x=1.4
(78)12 x+34 x=1
(79)18x-14 x= 12
(80)23 x-5×14 = 14
(81)12 +34 x=56
(82)22-14 x= 12
(83)23 x-14 x= 14
(84)x+14 x= 65
(85)23 x=14 x +14
(86)30 x-12 x -14 x=1
5x-2x=30
89x-43x=9.2
5x-45=100
1.2x-0.5x=6.3
23.4=2x=56
4x-x=48.6
(1) x2-4=0 (2) x2=256 (3) x2-7=0 (4) x2-9=0 (5) 4y2=9
(6) 16x2-49=0 (7) 2x2-32=0 (8) t2-45=0 (9) (6x-1)2=5 (10) (x+3)=2
(11) (2x-5)2=5 (12) (x+1)2-12=0 (13) (x-5)2-36=0 (14) 3x2-x=15-x
(1) x2-4x-3=0 (2) 2x2+3=7x (3) x2-6x+4=0 (4) x2+5x-6=0
(5) 2t2-7t=0 (6) 3x2-1=6x (7) x2+6x+8=0 (8) x2+4x-12=0
(9) x2+10x=24 (10) x2-8x+15=0 (11) x2+2x-99=0 (12) y2+5y+2=0
(13) 3x2-1=4x (14) x2+x-72=0 (15) x2-5x+6=0 (16) x2-0.5x-0.06=0 (17) 2x2=3-7x (18) y2-6y-6=0
(1) x2-3x+2=0 (2) 2x2+7x=4 (3) x2-2 (4) 2x2-mx-m2=0
(5) 2x2+5x-3=0 (6) t2+2t=5 (7) 6x2-13x-5=o (8) 2y2-4y-1=0
(9) p(p-8)=16 (10) 0.3x2+x=0.8 (11) x2+6x+8=o (12) x2+4x-12=0
(13) x2-10x=-24 (14) x2-8x+15=0 (15) x2+2x-99=0 (16) y2+5y+2=0
(17) 3x2-1=4x (18) x2+2x-2=0 (19) 3x2+4x-7=0 (20) 2y2+8y-1=0
(21) 3y2-2y=1 (22) x(x+8)=16 (23) (4y-3)(3y-1)=4 (24) x2-2.4x-13=0
(25) 5x+2=3x2 (26) 2x2+ (27) 3y2+1=2 (28)
(30) x2+3=2 x (31) x2-3 x+2=0
(32) x2-m(3x-2m+n)-n2=0 (34) x2+x-1=0(精确到0.001) (35) x2+3x-5=0(精确到0.001)
(1) x2-3x-10=0 (2) (x+3)(x-1)=5 (3) 3x2-16x+5=0 (4) 3x(x+2)=5(x+2)
(5) (3x+1)2-5=0 (6) 3(2x2-1)=7x (7) x2+7x+12=0 (8 ) x2-10x+16=0
(9) x2+3x-10=0 (10) x2-6x-40=0 (11) (x+1)(x+3)=15 (12) (y-1)2+2y(y-1)=0
(13) 3x2-7x+2=0 (14) 2x2-11x-21=0 (15) x2+7x+6=0 (16) (3x+2)2=4(x-3)2
(17) y2-17y+30=0 (18) y2-7y-60=o (19) x2+10x-11=0 (20) x2-12x-28=0
(21) t(t+3)=28 (22) 6x2-31x+35=o (23) 5x2+4x=o (24) 6x2-13x-15=0
(25) 9(2x+3)2-4(2x-5)2=0 (26) (2y+1)2+3(2y+1)+2=0 (27)
(28) 5m2x2-17mx+14=0(m 0) (29) 10a2x2+13abx-3b2=0(a 0)
(1) x2-3x+2=0 (2) x2-3x-2=0 (3) x2+12x+27=0 (4) (x-1)(x+2)=7
(5) (3-t)2+t2=9 (6) (y-2)2=3 (7) (2x+3)2=3(4x+3) (8) y+
(9) (2x-1)(x+3)=4 (10) x3-1=(x-1)3 (11) 3x(x-1)=2-2x (12) x2+2a2=3ax
(13) (a2-b2)x2-4abx=a2-b2 (14) (b-c)x2+(c-a)x+(a-b)=o
1. 7Y+5=40
2. Y+Y=16
*3. X+X=X
*4. (Y-7)x10+0=(15+90)-15x6
X-5.7=2.15X
4(X-3)-2X=18
3X+0.7=5X
3.5×2= 4.2+x
26×1.5= 2x+10
0.5×16X―16×0.2=4x
13 9.25-X=0.403
16.9÷X=0. 3
X÷0.5=2.6
x+13=33
3 - 5x=80
1.8 +6x=54
x+13=33
3 - 5x=80
1.8 +6x=54
6.7x -60.3=6.7
9 +4x =40
(X+8)*3=5X+8
8(X+3)=4X
1/2(X+2)=X
3/4X=2+X
7Y+5=40
Y+Y=16
* X+X=X
*(Y-7)x10+0=(15+90)-15x6
1.3-2x=3(3+2x)
2.3(x-21)=2x+3x
3.4x-3x=2+22
4.2(x+3x)=9-3x
5.2(8x+2x)-2x=2+8
6.3+2x+21=5x-1
7.9x+x-2=6X-1
8.4x-8=2+5xX2+1
9.2X8x+2X=12-2x
10.5(2-8x)-4=5(12-2x)
11.3(3X2x-3)=2x+2
12.2(2xX3-2+4x)=x+2
13.2x+4x-2=3x+1-3
14.3(3x+2)+4(5+3x)=1+4x
15.5x+4x(1+3)=2x+1
16.4+2(5-5x)=4x-2
17.4(2x+2x)+2=9(1-2x)
18.2x+x(1+4)=2(3x-4)
19.4-5+2x=2(1+3x)+2
20.6-2(2x+2)=2+2x
21.4+4x+1=1+3x-2
22.3+3x+3=6(2x-4)
23.4(2x+3x)+2=1-4x
24.x-4x+6=4(2xX6)
25.7-2X3x+2=6-2xX4
26.6-6(3-2xX3)=9-3x
27.5(2-4x)-3=2-4x+3
28.5xX3+5=2(8x-3)
29.2(2X3x-4X2)=2(2x-3)]
30.3(2xX2-4x2)=2(2X2+2X)
5X+3X=100-97+3X
3(2xX2-4x2)=2(2X2+2X)
2134X-546X=300
2(8x+2x)-2x=2+8
3+2x+21=5x-1
9x+x-2=6X-1
4x-8=2+5xX2+1
4-5+2x=2(1+3x)+2
4+2(5-5x)=4x-2
2x+x(1+4)=2(3x-4)
4(2x+2x)+2=9(1-2x)
6-2(2x+2)=2+2x
3+3x+3=6(2x-4)
4+4x+1=1+3x-2
4(2x+3x)+2=1-4x
x-4x+6=4(2xX6)
7-2X3x+2=6-2xX4
6-6(3-2xX3)=9-3x
5(2-4x)-3=2-4x+3
5xX3+5=2(8x-3)
2(2X3x-4X2)=2(2x-3)]
25÷X=5
X+9X+1X=11
9-4-X=1
34+X=73
5X+10X=150
4X+5X=90
102-X=53
5X+3X=100-97+3X
3(2xX2-4x2)=2(2X2+2X)
2134X-546X=300
3-2x=3(3+2x)
3(2xX2-4x2)=2(2X2+2X)
x+13=33
3 - 5x=80
1.8 +6x=54
6.7x -60.3=6.7
9 +4x =40
(X+8)*3=5X+8
8(X+3)=4X
1/2(X+2)=X
3/4X=2+X
7Y+5=40
Y+Y=16
* X+X=X
*(Y-7)x10+0=(15+90)-15x6
x+13=33
3 - 5x=80
102-X=53
5X+3X=100-97+3X
3(2xX2-4x2)=2(2X2+2X)
2134X-546X=300
3-2x=3(3+2x)
3(2xX2-4x2)=2(2X2+2X)
5x+10=7x-6 x+8+x=100 5x*2=7x+72 (x+x+x+20)*2=80-4
x-2*8+7=70-60+1
3x=x+x+56-(10x-8)
3X+189=521
4Y+119=22
3X*189=5
8Z/6=458
3X+77=59
4Y-6985=81
87X*13=5
7Z/93=41
15X+863-65X=54
58Y*55=27489
5x+12=7x-18
2x+3=11-6x
11x+42-2x=100-9x-22
8x-3+2x+1=7x+6-5x
2(x-2)+3(4x-1)=9(x-1)+7
2x-10.3x=15
0.52x-(1-0.52)x=80
x/2+3x/2=7
3x+7=32-2x
3x+5(138-x)=540
3x-7(x-1)=3-2(x+3)
18x+3x-3=18-2(2x-1)
3(20-x)=6x-4(x-11)
-(x/4-1)=5 3[4(5x-1)-8]=6
3x+5=8
5x-6=14
7x+8=8x+7
2x+5=3x+12
6x-2=3x+7
33x-10=56
5x-3=6x+8
x-12=3x+16
4(x-9)=7x+3
6(x-3)+7=5x+8
3x+(7-x)=17
3.5x+2=4x-1
3x+2(20-x)=50
3x+5=8
5x-6=14
7x+8=8x+7
2x+5=3x+12
6x-2=3x+7
33x-10=56
5a-3=6a+8
x-12=3x+16
4(x-9)=7x+3
6(x-3)+7=5x+8
2(8x+2x)-2x=2+8
3+2x+21=5x-1
9x+x-2=6X-1
4x-8=2+5xX2+1
4-5+2x=2(1+3x)+2
4+2(5-5x)=4x-2
2x+x(1+4)=2(3x-4)
4(2x+2x)+2=9(1-2x)
6-2(2x+2)=2+2x
3+3x+3=6(2x-4)
4+4x+1=1+3x-2
4(2x+3x)+2=1-4x
x-4x+6=4(2xX6)
7-2X3x+2=6-2xX4
6-6(3-2xX3)=9-3x
5(2-4x)-3=2-4x+3
5xX3+5=2(8x-3)
2(2X3x-4X2)=2(2x-3)]
25÷X=5
X+9X+1X=11
9-4-X=1
34+X=73
5X+10X=150
4X+5X=90
102-X=53
5X+3X=100-97+3X
3(2xX2-4x2)=2(2X2+2X)
2134X-546X=300
3-2x=3(3+2x)
3(2xX2-4x2)=2(2X2+2X)
简算题:
45.55-(6.82+15.55)
34.52-17.87-12.23
6.43-(1.4-0.57)
23.75-8.64-3.46
17.83-9.5-7.83-0.5
5.38+88.2-2.38+1.8
27.38-5.34+2.62-4.66
21.63-(8.5+9.63)
7.5-2.45+7.5+2.45
0.9+0.99+0.999
5.09-(0.09+1.23)
9.36-(4.36-3.5)
609-708+306-108+202-198+497-100
14+15+16+……+45+46
9999+9998+9997+9996
99999×26+33333×22
19175÷59+678
36.5×1.4-8.51÷3.7
1.3-3.79+9.7-6.21
8×0.4×12.5×2.5
125×(8+0.8+0.08)
35 ÷〔78 -(25 +38 )〕
1.7+150 +3.98
17.625-(4.4+58 )
3.35×6.47×2+6.7×3.6
18.7-3.375-6.625
2.5×4.4
25×1.25×32
(3.75+4.1+2.35)×9.8
1.28+9.8+7.72+10.2
12 ×1120 +12 ×2049
4/9×3=
5÷1/3 =
1/2÷1/3 =
21/25÷42=
4/5×3/4 =
8.7×0.2=
4×0.25=
1/7×14=
2/3÷5/6=
1.25×8=
3/5÷5/8=
6/7×3/2=
6×8.8=
4/11÷4=
4/9×3/8=
5/3÷5=
0÷8/3=
4/7-2/3=
2/7×2=
41/12×4=
4÷3/16=
12÷9/4=
75/8 ÷5=
12×16/9=
2/3×3=
8÷9/4 =
5/3÷3/5 =
4/5×5/8=
7/9×9/7=
2.64+3.6=
2.4×50=
3500÷70=
2050-298=
2+7÷9=
0.3÷3%=
286+198=
314-202=
526+301=
223-99=
1/2×3/5=
1. 89÷100=
0.82+0.08=
73×1=
0.63×10=
4÷10=
17÷1000=
0.56+0.4=
1.25×100=
5.6+99=
43×63/21=
100÷25=
1-0.93=
90-0.9=
18.3×1/3=
794-198=
68×25=
43.3-63/21 =
72×125=
3001-1998=
23/5×5/6 =
20/3×12=
1/2-1/6=
30.25×4/5=
5/6-1/2=
1/2×1/5=