初二数学计算题100道?4、(6a^3b-9a^c)÷3a^2 5、(5ax^2+15x)÷5x 6、(a+2b)(a-2b)7、(3a+b)^2 8、(1/2 a-1/3 b)^2 9、(x+5y)(x-7y)10、(2a+3b)(2a+3b)11、(x+5)(x-7)12、5x^3×8x^2 13、-3x×(2x^2-x+4)14、11x^12×(-12x^11)15、(x+5)(x+6)16、那么,初二数学计算题100道?一起来了解一下吧。
因式分解
1. ax+by+ay+bx
2. x^3+1
3. x^2+x^3
4. x^2+x^3-2
5. x^2-6x+8
6. x^2-12x+35
7. (x^3-1)+(x-1)(6x+11)
8. x^4-1
9. x^4+4
10. b^2+ab+ac+bc
11. x^3+y^3+z^3-3xyz
12. x^6+8x^3+9
13. x^2-100x+99
14. x^2-x-y^2-y
15. 7x^2-19x-6
16. 8x^2-6x-9
17. x+1)(x+2)-12
18. x^2+(p+q)x+pq
19. 3x^3-6x^2+3
20. a^2(x-2a)^2-a(x-2a)^2
21. 25m^2-10mn+n^2
22. x^2-3x-28
23. y^4+2y^3-3y^2
24. (x-1)^2*(3x-2)+(2-3x)
25. (x-2)^2-x+2
26. x^2-12x-28
27. 12a^2*b(x-y)-4ab(y-x)
28. a^2+5a+6
29. x^11-2x^10+x^9
30. x^2+x
31. x^3+x
32. x^4+x
33. 100x^2+30xy+2y^2
34. 6y^2-16y+8
35. 6-7a-5a^2
36. 3x^2-17x+10
37. 6a^2-11ab+3b^2
38. 2m^3+3m^2-5m
39. (x+y)^2-2(x+y)-3
40. a^2-b^2+2ab-c^2
41. m^2+2mn+n^2-1
42. x^2-4y^2+4yz-z^2
43. 9x^2-4y^2-z^2+4yz
44. -25+a^2+9b^2-6ab
45. 2x^2-100x-102
46. x^2*y^2-7xy+10
47. x^2-x-2
48. -x^2*y+6xy-8y
49. x^2-9y^2-x+3y
50. x^2-7x-8
答案:
1. (a+b)(x+y)
2. (x+1)(x^2-x+1)
3. x^2*(x+1)
4. (x-1)(x^2-2x+2)
5. (x-2)(x-4)
6. (x-5)(x-7)
7. (x-1)(x+3)(x+4)
8. (x^2+1)(x-1)(x+1)
9. (x^2-2x+2)(x^2+2x+x)
10. (b+c)(b+a)
11. (x+y+z)(x^2+y^2+z^2-xy-yz-xz)
12. (x+1)(x^2-x+1)(x+2)(x^2-2x+4)
13. (x-99)(x-1)
14. (x+y)(x-y-1)
15. (7x+2)(x-3)
16. (2x-3)(4x+3)
17. (x+5)(x-2)
18. (x+p)(x+q)
19. (x-1)(x^2-x-1)
20. a(a-1)(x-2a)^2
21. (5m-n)^2
22. (x-7)(x+4)
23. y^2(y-1)(y+3)
24. x(x-2)(3x-2)
25. (x-2)(x-3)
26. (x-14)(x+2)
27. 4ab(3a+1)(x-y)
28. (a+2)(a+3)
29. x^9*(x-1)^2
30. x(1+x)
31. x(1+x^2)
32. x(1+x)(1-x+x^2)
33. 2(5x+y)(10x+y)
34. 2(3y-2)(y-2)
35. (3-5a)(a+2)
36. (3x-2)(x-5)
37. (2a-3b)(3a-b)
38. m(m-1)(2m+5)
39. (x+y-3)(x+y+1)
40. (a+b-c)(a+b+c)
41. (m+n+1)(m+n-1)
42. (x+2y-z)(x-2y+z)
43. (3x+2y-z)(3x-2y+z)
44. (a-3b-5)(a-3b+5)
45. 2(x-51)(x+1)
46. (xy-5)(xy-2)
47. (x-2)(x+1)
48. -y(x-2)(x-4)
49. (x-y)(x+3y-1)
50. (x-8)(x+1)
1) 66x+17y=3967
25x+y=1200
答案:x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案:x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案:x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案:x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案:x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案:x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案:x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案:x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案:x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案:x=26 y=62
(11) 85x-92y=-2518
27x-y=486
答案:x=18 y=44
(12) 79x+40y=2419
56x-y=1176
答案:x=21 y=19
(13) 80x-87y=2156
22x-y=880
答案:x=40 y=12
(14) 32x+62y=5134
57x+y=2850
答案:x=50 y=57
(15) 83x-49y=82
59x+y=2183
答案:x=37 y=61
(16) 91x+70y=5845
95x-y=4275
答案:x=45 y=25
(17) 29x+44y=5281
88x-y=3608
答案:x=41 y=93
(18) 25x-95y=-4355
40x-y=2000
答案:x=50 y=59
(19) 54x+68y=3284
78x+y=1404
答案:x=18 y=34
(20) 70x+13y=3520
52x+y=2132
答案:x=41 y=50
(21) 48x-54y=-3186
24x+y=1080
答案:x=45 y=99
(22) 36x+77y=7619
47x-y=799
答案:x=17 y=91
(23) 13x-42y=-2717
31x-y=1333
答案:x=43 y=78
(24) 28x+28y=3332
52x-y=4628
答案:x=89 y=30
(25) 62x-98y=-2564
46x-y=2024
答案:x=44 y=54
(26) 79x-76y=-4388
26x-y=832
答案:x=32 y=91
(27) 63x-40y=-821
42x-y=546
答案:x=13 y=41
(28) 69x-96y=-1209
42x+y=3822
答案:x=91 y=78
(29) 85x+67y=7338
11x+y=308
答案:x=28 y=74
(30) 78x+74y=12928
14x+y=1218
答案:x=87 y=83
(31) 39x+42y=5331
59x-y=5841
答案:x=99 y=35
(32) 29x+18y=1916
58x+y=2320
答案:x=40 y=42
(33) 40x+31y=6043
45x-y=3555
答案:x=79 y=93
(34) 47x+50y=8598
45x+y=3780
答案:x=84 y=93
(35) 45x-30y=-1455
29x-y=725
答案:x=25 y=86
(36) 11x-43y=-1361
47x+y=799
答案:x=17 y=36
(37) 33x+59y=3254
94x+y=1034
答案:x=11 y=49
(38) 89x-74y=-2735
68x+y=1020
答案:x=15 y=55
(39) 94x+71y=7517
78x+y=3822
答案:x=49 y=41
(40) 28x-62y=-4934
46x+y=552
答案:x=12 y=85
(41) 75x+43y=8472
17x-y=1394
答案:x=82 y=54
(42) 41x-38y=-1180
29x+y=1450
答案:x=50 y=85
(43) 22x-59y=824
63x+y=4725
答案:x=75 y=14
(44) 95x-56y=-401
90x+y=1530
答案:x=17 y=36
(45) 93x-52y=-852
29x+y=464
答案:x=16 y=45
(46) 93x+12y=8823
54x+y=4914
答案:x=91 y=30
(47) 21x-63y=84
20x+y=1880
答案:x=94 y=30
(48) 48x+93y=9756
38x-y=950
答案:x=25 y=92
(49) 99x-67y=4011
75x-y=5475
答案:x=73 y=48
(50) 83x+64y=9291
90x-y=3690
答案:x=41 y=92
(51) 17x+62y=3216
75x-y=7350
答案:x=98 y=25
(52) 77x+67y=2739
14x-y=364
答案:x=26 y=11
(53) 20x-68y=-4596
14x-y=924
答案:x=66 y=87
(54) 23x+87y=4110
83x-y=5727
答案:x=69 y=29
(55) 22x-38y=804
86x+y=6708
答案:x=78 y=24
(56) 20x-45y=-3520
56x+y=728
答案:x=13 y=84
(57) 46x+37y=7085
61x-y=4636
答案:x=76 y=97
(58) 17x+61y=4088
71x+y=5609
答案:x=79 y=45
(59) 51x-61y=-1907
89x-y=2314
答案:x=26 y=53
(60) 69x-98y=-2404
21x+y=1386
答案:x=66 y=71
(61) 15x-41y=754
74x-y=6956
答案:x=94 y=16
(62) 78x-55y=656
89x+y=5518
答案:x=62 y=76
(63) 29x+21y=1633
31x-y=713
答案:x=23 y=46
(64) 58x-28y=2724
35x+y=3080
答案:x=88 y=85
(65) 28x-63y=-2254
88x-y=2024
答案:x=23 y=46
(66) 43x+50y=7064
85x+y=8330
答案:x=98 y=57
(67) 58x-77y=1170
38x-y=2280
答案:x=60 y=30
(68) 92x+83y=11586
43x+y=3010
答案:x=70 y=62
(69) 99x+82y=6055
52x-y=1716
答案:x=33 y=34
(70) 15x+26y=1729
94x+y=8554
答案:x=91 y=14
(71) 64x+32y=3552
56x-y=2296
答案:x=41 y=29
(72) 94x+66y=10524
84x-y=7812
答案:x=93 y=27
(73) 65x-79y=-5815
89x+y=2314
答案:x=26 y=95
(74) 96x+54y=6216
63x-y=1953
答案:x=31 y=60
(75) 60x-44y=-352
33x-y=1452
答案:x=44 y=68
(76) 79x-45y=510
14x-y=840
答案:x=60 y=94
(77) 29x-35y=-218
59x-y=4897
答案:x=83 y=75
(78) 33x-24y=1905
30x+y=2670
答案:x=89 y=43
(79) 61x+94y=11800
93x+y=5952
答案:x=64 y=84
(80) 61x+90y=5001
48x+y=2448
答案:x=51 y=21
(81) 93x-19y=2
86x-y=1548
答案:x=18 y=88
(82) 19x-96y=-5910
30x-y=2340
答案:x=78 y=77
(83) 80x+74y=8088
96x-y=8640
答案:x=90 y=12
(84) 53x-94y=1946
45x+y=2610
答案:x=58 y=12
(85) 93x+12y=9117
28x-y=2492
答案:x=89 y=70
(86) 66x-71y=-1673
99x-y=7821
答案:x=79 y=97
(87) 43x-52y=-1742
76x+y=1976
答案:x=26 y=55
(88) 70x+35y=8295
40x+y=2920
答案:x=73 y=91
(89) 43x+82y=4757
11x+y=231
答案:x=21 y=47
(90) 12x-19y=236
95x-y=7885
答案:x=83 y=40
(91) 51x+99y=8031
71x-y=2911
答案:x=41 y=60
(92) 37x+74y=4403
69x-y=6003
答案:x=87 y=16
(93) 46x+34y=4820
71x-y=5183
答案:x=73 y=43
(94) 47x+98y=5861
55x-y=4565
答案:x=83 y=20
(95) 30x-17y=239
28x+y=1064
答案:x=38 y=53
(96) 55x-12y=4112
79x-y=7268
答案:x=92 y=79
(97) 27x-24y=-450
67x-y=3886
答案:x=58 y=84
(98) 97x+23y=8119
14x+y=966
答案:x=69 y=62
(99) 84x+53y=11275
70x+y=6790
答案:x=97 y=59
(100) 51x-97y=297
19x-y=1520
答案:x=80 y=39
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)
42.77+27÷(99-96)-3
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) 86+49+114= 2) 240+(39-40)=
3) 255+(352+145+48)= 4) (345+377)+(55+23)=
5) 9+(80+191)= 6) (268+314+132)+86=
7) 5190÷15= 8) 495+(278+5)+222=
9) 174×36×25= 10) 399-199=
11) 48+(164+152)+36= 12) 133-(28+29)-43=
13) 1650÷25= 14) 260×8-8-8×59=
15) 996+500= 16) 6975÷25=
17) 196-95= 18) 328-(163-72)=
19) 199+(84-99)= 20) 885-1-201-298=
21) 460-35-3-262= 22) (98+59+2)+41=
23) 736×12-12-12×335= 24) 116+(112+184)=
25) 150×258+142×150= 26) 31×24×25=
27) 9000÷25= 28) 502-287-54-159=
29) 307+(92+93)= 30) 80×125=
31) 102×15= 32) 30+(63+70)+37=
33) 27+(73+73)+27= 34) 86+(98+14+2)=
35) 544-272-28= 36) 18000÷150÷4=
37) 103×69= 38) 25×64×125=
39) 343-188-12= 40) 509×11-11-11×8=
41) 79×24×25= 42) (145+25)+(155+275)=
43) (447+423)+(53+77)= 44) 46+15+54=
45) 589-109-(6+185)= 46) 8×125=
47) 20×25= 48) 89×245+155×89=
49) 92+(79+8+21)= 50) 222+15+78=
51) 96×125= 52) 30600÷25÷4=
53) 5996+3004= 54) 6015-(518+699)-2783=
55) 4003×2426= 56) 2467×70-70-70×466=
57) 84×25= 58) 4001-2002=
59) 1616×506+2494×1616= 60) 4×17+4+1982×4=
61) 799×660+340×799= 62) 3991×36×25=
63) 6076-875-(805+3320)= 64) 6056-679-40-4281=
65) 4134+(2819+866)+2181= 66) 5898-(2065-102)=
67) 3297×1273+2727×3297= 68) 1312+(153+688+1847)=
69) 2315-793-114-1093= 70) 3940+(1739-1940)=
71) 1455+(1768+1545)+1232= 72) 975+(1007+2025)=
73) 24×1951+24+48×24= 74) 30425÷25=
75) 1376+(1961+624+39)= 76) (686+1872+2314)+1128=
77) 2922+(260-922)= 78) 113600÷100÷4=
79) 2002×658= 80) 1428+(958+2572)=
81) 2001×786= 82) 190×760+190+3239×190=
83) 2976×1145+2855×2976= 84) 88×25=
85) 8122-(3084-1878)= 86) 879+(1295+2121)=
87) 3998+2001= 38) 2595×178-178-178×594=
89) 4467-2024-976= 90) 1319×1339+1661×1319=
91) 997×885= 92) 453×8×125=
93) 4928-(871+1928)= 94) 997×917=
95) 1526+(938-526)= 96) 803×12×25=
97) 114000÷1200= 98) 6933×332-332-332×2932=
99) 16×25= 100) 25×224×125=
101)9/22 + 1/11 ÷ 1/2
102)5/3 × 11/5 + 4/3
103)45 × 2/3 + 1/3 × 15
104) 7/19 + 12/19 × 5/6
106) 8/7 × 21/16 + 1/2
107) 101 × 1/5 – 1/5 × 21
108)50+160÷40 (58+370)÷(64-45)
109)120-144÷18+35
110)347+45×2-4160÷52
111)(58+37)÷(64-9×5)
112)95÷(64-45)
113)178-145÷5×6+42 420+580-64×21÷28
114)812-700÷(9+31×11) (136+64)×(65-345÷23)
115)85+14×(14+208÷26)
116)(284+16)×(512-8208÷18)
117)120-36×4÷18+35
118)(58+37)÷(64-9×5)
119)(6.8-6.8×0.55)÷8.5
120)0.12× 4.8÷0.12×4.8
121)(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
121)6-1.6÷4= 5.38+7.85-5.37=
122)7.2÷0.8-1.2×5= 6-1.19×3-0.43=
123)6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
124)10.15-10.75×0.4-5.7
125)5.8×(3.87-0.13)+4.2×3.74
126)32.52-(6+9.728÷3.2)×2.5
127)[(7.1-5.6)×0.9-1.15] ÷2.5
128)5.4÷[2.6×(3.7-2.9)+0.62]
129)0.9+0.1÷0.1 0.3×0.3×0.3
130)0.5÷0.5÷0.5 0.8-0.8×0.5
131)0.8÷0.8×0.5 2.7+2.3÷0.2
132)5.4÷1.8-1.8 11.2-1.93+0.8
133)0.38×2.9+0.38 0.5-0.5×0.5
134)0.8÷0.8×0.5 2.7+2.3÷0.2
135)5.4÷1.8-0.8 11.2-1.93+8.07
136)1-1÷4 0.65×102
137)9.87-(5.87+2.9)
138)(0.25+0.45)×0.4
139)(0.36+1.29)÷3 0.008+0.992×2.5×40
140)4.84+0.3×15÷0.2+77.5 0.15×(3.79-1.9)+1.11×0.15
141)0.05×[30-(18.4+27.83÷4.6)] (6.8-6.8×0.55)÷8.5
142)0.12× 4.8÷0.12×4.8 1.6-1.6÷4
143)5.38+7.85-5.37 7.2÷0.8-1.2×5
144)6-1.19×3-0.43 6.5×(4.8-1.2×4)
145)0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.7
147)146)5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5
148)[(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62]
149)5.47+12.81+3.53+7.19 0.83×12.5×8
150)109+(72+91)-93×24×125
因式分解
1. ax+by+ay+bx
2. x^3+1
3. x^2+x^3
4. x^2+x^3-2
5. x^2-6x+8
6. x^2-12x+35
7. (x^3-1)+(x-1)(6x+11)
8. x^4-1
9. x^4+4
10. b^2+ab+ac+bc
11. x^3+y^3+z^3-3xyz
12. x^6+8x^3+9
13. x^2-100x+99
14. x^2-x-y^2-y
15. 7x^2-19x-6
16. 8x^2-6x-9
17. x+1)(x+2)-12
18. x^2+(p+q)x+pq
19. 3x^3-6x^2+3
20. a^2(x-2a)^2-a(x-2a)^2
21. 25m^2-10mn+n^2
22. x^2-3x-28
23. y^4+2y^3-3y^2
24. (x-1)^2*(3x-2)+(2-3x)
25. (x-2)^2-x+2
26. x^2-12x-28
27. 12a^2*b(x-y)-4ab(y-x)
28. a^2+5a+6
29. x^11-2x^10+x^9
30. x^2+x
31. x^3+x
32. x^4+x
33. 100x^2+30xy+2y^2
34. 6y^2-16y+8
35. 6-7a-5a^2
36. 3x^2-17x+10
37. 6a^2-11ab+3b^2
38. 2m^3+3m^2-5m
39. (x+y)^2-2(x+y)-3
40. a^2-b^2+2ab-c^2
41. m^2+2mn+n^2-1
42. x^2-4y^2+4yz-z^2
43. 9x^2-4y^2-z^2+4yz
44. -25+a^2+9b^2-6ab
45. 2x^2-100x-102
46. x^2*y^2-7xy+10
47. x^2-x-2
48. -x^2*y+6xy-8y
49. x^2-9y^2-x+3y
50. x^2-7x-8
答案:
1. (a+b)(x+y)
2. (x+1)(x^2-x+1)
3. x^2*(x+1)
4. (x-1)(x^2-2x+2)
5. (x-2)(x-4)
6. (x-5)(x-7)
7. (x-1)(x+3)(x+4)
8. (x^2+1)(x-1)(x+1)
9. (x^2-2x+2)(x^2+2x+x)
10. (b+c)(b+a)
11. (x+y+z)(x^2+y^2+z^2-xy-yz-xz)
12. (x+1)(x^2-x+1)(x+2)(x^2-2x+4)
13. (x-99)(x-1)
14. (x+y)(x-y-1)
15. (7x+2)(x-3)
16. (2x-3)(4x+3)
17. (x+5)(x-2)
18. (x+p)(x+q)
19. (x-1)(x^2-x-1)
20. a(a-1)(x-2a)^2
21. (5m-n)^2
22. (x-7)(x+4)
23. y^2(y-1)(y+3)
24. x(x-2)(3x-2)
25. (x-2)(x-3)
26. (x-14)(x+2)
27. 4ab(3a+1)(x-y)
28. (a+2)(a+3)
29. x^9*(x-1)^2
30. x(1+x)
31. x(1+x^2)
32. x(1+x)(1-x+x^2)
33. 2(5x+y)(10x+y)
34. 2(3y-2)(y-2)
35. (3-5a)(a+2)
36. (3x-2)(x-5)
37. (2a-3b)(3a-b)
38. m(m-1)(2m+5)
39. (x+y-3)(x+y+1)
40. (a+b-c)(a+b+c)
41. (m+n+1)(m+n-1)
42. (x+2y-z)(x-2y+z)
43. (3x+2y-z)(3x-2y+z)
44. (a-3b-5)(a-3b+5)
45. 2(x-51)(x+1)
46. (xy-5)(xy-2)
47. (x-2)(x+1)
48. -y(x-2)(x-4)
49. (x-y)(x+3y-1)
50. (x-8)(x+1)

(1)66x+17y=3967
25x+y=1200
答案:x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案:x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案:x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案:x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案:x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案:x=75 y=48
定义
加法:把两个数合并成一个数的运算。
减法:在已知两个加数的和与其中的一个加数,求另一个加数的运算。
乘法:求两个数乘积的运算。
一个数乘整数,是求几个相同加数和的简便运算。
除法:已知两个因数的积与其中的一个因数,求另一个因数的运算。
以上内容参考:百度百科-四则运算
75÷〔138÷(100-54)〕 85×(95-1440÷24)
80400-(4300+870÷15) 240×78÷(154-115)
1437×27+27×563 〔75-(12+18)〕÷15
2160÷〔(83-79)×18〕 280+840÷24×5
325÷13×(266-250) 85×(95-1440÷24)
58870÷(105+20×2) 1437×27+27×563
81432÷(13×52+78) [37.85-(7.85+6.4)] ×30
156×[(17.7-7.2)÷3] (947-599)+76×64
36×(913-276÷23) [192-(54+38)]×67
[(7.1-5.6)×0.9-1.15]÷2.5 81432÷(13×52+78)
5.4÷[2.6×(3.7-2.9)+0.62] (947-599)+76×64 60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4 1.25×2.4) 0.8×〔15.5-(3.21 5.79)〕 (31.8 3.2×4)÷5 194-64.8÷1.8×0.9 36.72÷4.25×9.9 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2]
(136+64)×(65-345÷23) (6.8-6.8×0.55)÷8.5
0.12× 4.8÷0.12×4.8 (58+37)÷(64-9×5)
812-700÷(9+31×11) (3.2×1.5+2.5)÷1.6
85+14×(14+208÷26) 120-36×4÷18+35
(284+16)×(512-8208÷18) 9.72×1.6-18.305÷7
4/7÷[1/3×(3/5-3/10)] (4/5+1/4)÷7/3+7/10
12.78-0÷( 13.4+156.6 ) 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 3.2×(1.5+2.5)÷1.6
85+14×(14+208÷26) (58+37)÷(64-9×5)
(6.8-6.8×0.55)÷8.5 (284+16)×(512-8208÷18)
0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6
120-36×4÷18+35 10.15-10.75×0.4-5.7
5.8×(3.87-0.13)+4.2×3.74 347+45×2-4160÷52
32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5)
[(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6
5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6
3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6
5.8×(3.87-0.13)+4.2×3.74
33.02-(148.4-90.85)÷2.5

以上就是初二数学计算题100道的全部内容,好的,我会按照您的要求给出八年级分式计算题,并附带过程和答案。以下是第一道题目:题目:计算 / ÷ /。答案与过程:1. 将题目中的除法转换为乘法,得到式子为:/ × ab/。这里我们知道差平方公式:$a^2 - b^2 = $。这样原题的第二个分数分母可以被拆解。这一步非常关键,内容来源于互联网,信息真伪需自行辨别。如有侵权请联系删除。