初一,数学,速算题目 (越多越好。)
发布网友
发布时间：2022-05-18 19:34
共3个回答
热心网友
时间：2023-10-27 01:49
25x+y=1200
(2) 18x+23y=2303
74x-y=1998
(3) 44x+90y=7796
44x+y=3476
(4) 76x-66y=4082
30x-y=2940
(5) 67x+54y=8546
71x-y=5680
(6) 42x-95y=-1410
21x-y=1575
(7) 47x-40y=853
34x-y=2006
(8) 19x-32y=-1786
75x+y=4950
(9) 97x+24y=7202
58x-y=2900
(10) 42x+85y=6362
63x-y=1638
(11) 85x-92y=-2518
27x-y=486
(12) 79x+40y=2419
56x-y=1176
(13) 80x-87y=2156
22x-y=880
(14) 32x+62y=5134
57x+y=2850
(15) 83x-49y=82
59x+y=2183
(16) 91x+70y=5845
95x-y=4275
(17) 29x+44y=5281
88x-y=3608
(18) 25x-95y=-4355
40x-y=2000
(19) 54x+68y=3284
78x+y=1404
(20) 70x+13y=3520
52x+y=2132
(21) 48x-54y=-3186
24x+y=1080
(22) 36x+77y=7619
47x-y=799
(23) 13x-42y=-2717
31x-y=1333
(24) 28x+28y=3332
52x-y=4628
(25) 62x-98y=-2564
46x-y=2024
(26) 79x-76y=-4388
26x-y=832
(27) 63x-40y=-821
42x-y=546
(28) 69x-96y=-1209
42x+y=3822
(29) 85x+67y=7338
11x+y=308
14x+y=1218
(31) 39x+42y=5331
59x-y=5841
(32) 29x+18y=1916
58x+y=2320
(33) 40x+31y=6043
45x-y=3555
(34) 47x+50y=8598
45x+y=3780
(35) 45x-30y=-1455
29x-y=725
(36) 11x-43y=-1361
47x+y=799
(37) 33x+59y=3254
94x+y=1034
(38) 89x-74y=-2735
68x+y=1020
(39) 94x+71y=7517
78x+y=3822
(40) 28x-62y=-4934
46x+y=552
(41) 75x+43y=8472
17x-y=1394
(42) 41x-38y=-1180
29x+y=1450
(43) 22x-59y=824
63x+y=4725
(44) 95x-56y=-401
90x+y=1530
(45) 93x-52y=-852
29x+y=464
(46) 93x+12y=8823
54x+y=4914
(47) 21x-63y=84
20x+y=1880
(48) 48x+93y=9756
38x-y=950
(49) 99x-67y=4011
75x-y=5475
(50) 83x+64y=9291
90x-y=3690
3X+18=52 x=34/3
4Y+11=22 y=11/4
3X*9=5 x=5/27
8Z/6=48 z=36
3X+7=59 x=52/3
4Y-69=81 y=75/4
8X*6=5 x=5/48
7Z/9=4 y=63/7
15X+8-5X=54 x=4.6
5Y*5=27 y=27/40
8x+2=10 x=1
x*8=88 x=11
y-90=1 y=91
2x-98=2 x=50
6x*6=12 x=1/3
5-6=5x x=-1/5
6*x=42 x=7
55-y=33 y=22
11*3x=60 x=20/11
8-y=2 y=-6
1.x+2=3
2.x+32=33
3.x+6=18
4.4+x=47
5.19-x=8
6.98-x=13
7.66-x=10
8.5x=10
9.3x=27
10.7x=7
11.8x=8
12.9x=9
13.10x=100
14.66x=660
15.7x=49
16.2x=4
17.3x=9
18.4x=16
19.5x=25
20.6x=36
21.8x=64
22.9x=81
23.10x=100
24.11x=121
25.12x=144
26.13x=169
27.14x=196
28.15x=225
29.16x=256
30.17x=289
31.18x=324
32.19x=361
33.20x=400
31.21x=441
32.22x=484
33.111x=12321
34.1111x=1234321
35.11111x=123454321
36.111111x=12345654321
37.46/x=23
38.64/x=8
39.99/x=11
40.1235467564x=0
41.2x+1= -2+x
42.4x-3(20-x)=3
43.．-2(x-1)=4
44.3X+189=521
45.4Y+119=22 5
46.3X+77=59
47.4Y-6985=81
48.X=0.1
49.5X=55.5 1)87x+2y=7733
20x+32y=4364
2)44x+60y=6340
15x+42y=4122
3)11x+74y=3548
71x+45y=4730
4)53x+54y=3229
70x+43y=2877
5)43x+9y=801
76x+16y=1420
6)55x+32y=6161
45x+84y=10707
7)47x+27y=5396
94x+55y=10870
8)33x+49y=4237
92x+2y=6428
9)0x+56y=3920
64x+90y=9244
10)91x+8y=4696
51x+66y=5154
望采纳！谢谢！
热心网友
时间：2023-10-27 01:49
=x²-7/3xy+3/2y²
(﹣a-3b)(7a+7b)
=-7a²-28ab-21b²
(9x-2y)(x+y)
=9x²+7xy-2y²
(-1/3p+1/2q)(-2/3p-1/4q)
2/9p²-1/4pq-1/8q²
(﹣1/5a³x^4-9/10a²x³）÷（﹣3/5ax²）
=1/3a²x² - 3/2ax
(﹣2mr²h+3mrh²）÷（﹣1/2mrh）
= 4r-6h
热心网友
时间：2023-10-27 01:50
sos121+sin78=
