初一数学上册计算题天天练精品18Word下载.docx
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[4-(-5)2]
583
6、合并同类项。
2n-(3n+4)n-(2n-9q)-(5q+n)
6(4a-6)-6a3-(9y+3)-(4y+6)
7(-ab+8a)-(3a-4b)2(abc+5a)+4(9a+3abc)
9(xy+8z)-(-xy+7z)-3(pq-pr)-(2pq+pr)
7、解方程。
7x1
—x+—=—0.2x+0.8=1.4+6.9x
986
21
—-7x=2+—x8(x+8)+4(x+6)=9
34
13
—(6x+8)=—x-92x+8(8+x)=-8
75
y-1y+2
——=5-——1.5x+2.5(x+1)=15
35
12
—(4+4x)=—(5x+2)2(8x+4)=6
89
4—,-4,0,-5.6
-—,-23.5,19,5
6
-4—,0.15,-5,-0.64
(1)-20与10
(2)-4.5与2.25(3)|-4.4|与|3.4|
(4)-—与-—(5)19与-|-3|(6)|-74|与|-8.4|
69
711
8-—+—17×
(-18)-30×
918
611
(---)×
-(-84)÷
16÷
(-9)
734
117
1601×
[2-(-2)2]
458
-5x+(2x+9)3x+(5x+7q)+(9q+x)
2(8m-10)+7m6+(5a-2)-(8a-6)
6(-ab-7a)-(6a+2b)6(abc-3a)+9(9a-5abc)
7(xy+7z)+(-xy+4z)-4(pq+pr)+(9pq-pr)
5x1
—x-—=—0.7x+0.8=5+6.8x
669
41
—+8x=5+—x9(x+7)+2(x+7)=9
32
—(2x+3)=—x+18x-8(3-x)=-3
65
y+2y-2
——=2+——1x-9(x+2)=35
26
—(3+2x)=—(3x+2)6(7x-5)=17
99
2
-2—,-2,0,-8
—,13,6,-3
-6—,4.9,2,0.16
9
(1)-15与-4
(2)-4.75与-1.5(3)|-5|与|-3.8|
(4)-—与-—(5)-3与-|-6|(6)|-35.5|与|-5.6|
89
513
1+—+—30×
(-19)-23×
(-19)
955
(-+-)×
-(-72)×
12÷
(-12)
864
766
-(—+—+—)×
2806×
[2+(-1)3]
857
4x-(6x+3)4x+(4x-9c)-(4c-6x)
7(3n-5)+4n1-(7n-9)-(5n-8)
4(-ab+4a)+(3a+4b)4(abc-9a)+7(3a+7abc)
7(xy-9z)+(-xy+2z)-3(pq+pr)-(7pq-pr)
—x+—=—0.7x-0.6=3.2+5x
389
—-9x=9-—x3(x-3)-6(x+3)=19
37
11
—(9x-5)=—x+27x+8(18-x)=-6
35
——=2+——5x-1.5(x-5)=35
—(1-3x)=—(2x-1)9(3x-1)=1
95
-3—,1,0,0.8
-—,7,17,7
5—,2.4,4,-0.24
(1)-16与3
(2)-4.5与-1.25(3)|-5.1|与|3|
(4)-—与-—(5)3与-|-3|(6)|-81.8|与|-5.9|
73
511
8-—+—29×
(-4)+8×
(-4)
318
114
-(-72)÷
8×
(-3)
473
665
1504×
[3+(-3)2]
-7b+(3b+5)b-(8b+7d)-(5d+3b)
-3(4m+9)+6m9+(4a+5)+(3a-2)
9(ab+7a)-(2a-5b)19(abc-9a)+4(7a-2abc)
5(xy+7z)+(-xy+5z)-6(pq+pr)-(7pq-pr)
—x+—=—0.7x-0.8=5.8-0.2x
363
—-6x=7-—x4(x+8)-7(x-3)=3
36
14
—(4x-8)=—x+37x-9(2-x)=-3
y-1y-3
——=2+——1.5x+4.5(x+9)=25
46
—(3+3x)=—(2x+3)5(2x+7)=16
29
-2—,3,0,7.2
-—,13,-16,-0.3
-9—,1.4,3,0.56
(1)-9与4
(2)-3.25与1.25(3)|-7.6|与|-2.4|
(4)-—与-—(5)8与-|-6|(6)|-79.9|与|-3.6|
4-—-—25×
(-17)+24×
(-17)
347
-(-168)÷
16×
438
248
-(—+—-—)×
635×
[17-(-4)2]
337
-6x-(9x-1)x+(9x+4p)-(9p+x)
-2(6b-10)+3b2+(2n-10)-(9n-1)
4(ab-5a)+(7a-2b)8(abc-6a)-7(9a+4abc)
9(xy+4z)+(-xy-5z)-6(pq-pr)-(9pq-pr)
—x-—=—0.6x-0.7=4.1+1x
343
—-4x=1-—x2(x+5)-8(x+2)=7
72
—(7x+5)=—x-36x-3(19-x)=-3
45
y+3y-2
——=4-——4.5x+3(x-3)=45
—(2-3x)=—(3x-2)8(7x+5)=1
1—,-4.5,0,-4.8
-—,13.5,20,7.9
-1—,1.55,1,0.56
(1)-11与6
(2)-3.25与2.25(3)|-4.6|与|-2.7|
(4)-—与-—(5)10与-|-8|(6)|-39.4|与|-4.7|
39
113
1-—-—24×
(-16)+23×
(-16)
463
(---)÷
-(-108)×
374
636
-(—-—+—)×
1401×
[5-(-2)3]
745
3a+(8a-6)4a-(3a+3d)-(6d-3a)
-7(8a+8)-7a6+(9n-10)+(4n+2)
8(ab+8a)+(2a+7b)11(abc-5a)-7(3a-8abc)
6(xy-5z)+(-xy-2z)-9(pq+pr)-(4pq+pr)
—x+—=—0.1x+0.6=1.3-7.8x
989
—+7x=8-—x2(x-8)+8(x+3)=6
33
—(7x+5)=—x-93x+9(14-x)=-3
y-2y+1
——=4-——3x-10(x-4)=30
—(3+3x)=—(3x-4)7(3x-3)=7
-5—,-3.5,0,-5.6
-—,-24.5,3,7.5
4—,-1.3,-10,-0.8
(1)-14与10
(2)-4.25与-0.5(3)|-7|与|3.4|
(4)-—与-—(5)10与-|-7|(6)|-14.1|与|-6.7|
23
71
9+—+—30×
(-13)+28×
(-13)
615
291
-(-144)÷
12×
387
577
1928×
[12-(-5)2]
468
-9n+(7n+8)n+(2n-7q)+(8q+n)
-8(4t+3)-5t4+(7m-5)-(3m+2)
6(ab-3a)-(6a-2b)17(abc+8a)-6(7a+2abc)
3(xy+7z)+(-xy+4z)-5(pq-pr)+(9pq+pr)
—x+—=—0.2x+0.9=4.3+3.9x
649
—+2x=8+—x4(x+6)-3(x-5)=15
—(8x+2)=—x+32x+9(10+x)=-5
y-1y+1
——=4-——4.5x+2.5(x-1)=15
36
—(1-2x)=—(4x+2)2(5x-9)=14
2—,-5,0,5.6
-—,-23.5,17,-4.9
1—,-1.95,-4,0.56
(1)-11与-7
(2)-3.5与1.5(3)|-8.8|与|-2.7|
(4)-—与-—(5)13与-|-7|(6)|-32.2|与|-1.9|
47
57
9-—-—26×
(-18)+11×
695
-(-132)÷
584
154
907×
[6+(-5)3]
365
-6b-(8b+5)b+(6b-2z)+(6z-b)
-6(5s+6)-9s9+(6n+5)+(5n-8)
3(ab+2a)+(9a-6b)12(abc+4a)-3(3a-9abc)
7(xy+9z)+(-xy-3z)-5(pq+pr)-(5pq+pr)
—x+—=—0.7x-0.5=4.9-3.5x
683
—+4x=8+—x9(x+3)-4(x-2)=17
38
—(5x-8)=—x+73x-8(20-x)=-1
y+2y-3
——=2+——3x+3.5(x-6)=45
45
—(5+2x)=—(4x-4)7(4x-3)=15
77
3—,1,0,-7.2
—,23.5,-15,8.9
-7—,4.6,2,-0.8
(1)-16与4
(2)-2.5与-1.75(3)|-5.3|与|1.5|
(4)-—与-—(5)-8与-|-1|(6)|-59.8|与|-5|
17
9-—+—24×
(-1)-9×
(-1)
618
215
-(-102)×
4÷
(-6)
354
614
609×
[10-(-4)3]
543
-4a-(6a+7)a+(2a-9z)-(4z-a)
8(3n-3)-5n9+(9n+2)+(2n+4)
8(-ab-3a)-(5a+6b)10(abc+4a)-5(5a-7abc)
4(xy-6z)-(-xy-9z)-3(pq+pr)+(2pq-pr)
—x+—=—0.2x+0.7=6.7-3.2x
949
81
—-3x=4-—x2(x+4)-9(x-2)=17
—(3x-5)=—x+22x-5(1+x)=-9
25
y-3y+2
——=6-——1x+7.5(x-6)=5
—(2-2x)=—(2x-3)8(4x+5)=16
4—,-3.5,0,5.6
—,-17,13,7.8
8—,2.95,-9,-0.24
(1)-12与-7
(2)-2.25与0.75(3)|-8|与|1.8|