初一数学上册计算题天天练强烈推荐46Word文件下载.docx
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713
8+—-—30×
(-14)-30×
(-14)
612
534
(---)÷
-(-60)÷
14×
(-6)
645
251
-(—-—-—)×
1443×
[6-(-2)2]
368
6、合并同类项。
-5y-(2y+6)8y+(3y-8s)-(9s+5y)
6(8b-4)-5b6+(2a+2)+(7a-7)
2(ab+7a)+(2a-6b)17(abc-7a)+5(3a-7abc)
3(xy+6z)+(-xy+6z)-7(pq+pr)+(3pq-pr)
7、解方程。
5x1
—x+—=—0.8x+0.2=0.3-1x
986
21
—-8x=7+—x7(x-6)-7(x+2)=17
39
11
—(7x-5)=—x+59x+7(18+x)=-7
75
y+2y-3
——=4+——2.5x-2.5(x-6)=10
26
12
—(2+2x)=—(4x-3)8(6x+4)=17
85
-3—,0.5,0,3.2
—,9.5,-18,7.3
-6—,1.65,-9,0.24
7
(1)-12与-2
(2)-5与0(3)|-8.9|与|2.6|
(4)-—与-—(5)7与-|-5|(6)|-51.9|与|-4|
97
711
9-—-—5×
(-17)+6×
(-17)
912
144
(-+-)÷
14÷
(-24)
635
419
-(—+—-—)×
1687×
[10-(-5)2]
378
7x+(6x+4)x-(4x+8c)-(4c+9x)
-5(6m+3)-3m1-(8a-9)-(2a-3)
3(-ab-4a)+(4a-9b)7(abc+9a)+6(8a-3abc)
5(xy+2z)-(-xy-8z)-3(pq+pr)+(6pq-pr)
—x+—=—0.9x-0.4=4.9-2.7x
683
41
—-4x=7-—x8(x+1)+5(x+5)=18
32
—(7x+1)=—x-32x+2(4-x)=-5
55
y-2y-1
——=2-——2.5x+5(x+2)=15
45
—(5-2x)=—(5x+2)4(2x+4)=18
89
4
-4—,3,0,-3.2
—,5,-9,3.4
3
8—,-3.65,10,0.08
(1)-12与6
(2)-3与-0.75(3)|-7.4|与|3.3|
(4)-—与-—(5)5与-|-8|(6)|-5.4|与|-1|
93
17
8-—-—4×
(-20)-11×
(-20)
135
-(-96)×
18×
646
111
1609×
[10+(-4)3]
548
-4n-(4n+4)n+(3n-5s)+(6s+n)
5(9n-6)+9n1-(6y+4)-(6y+4)
6(-ab+4a)+(8a+6b)20(abc+8a)-5(7a-9abc)
5(xy-7z)+(-xy+8z)-4(pq-pr)-(4pq+pr)
—x-—=—0.2x-0.1=6-7.4x
943
—-8x=9-—x6(x-9)-4(x-9)=9
—(2x-6)=—x-14x-2(14-x)=-7
y+3y+1
——=1+——4x-7.5(x-4)=5
35
—(4-3x)=—(2x-1)5(2x-3)=17
33
4—,-3.5,0,-6.4
-—,-12.5,13,-8.1
-9—,-0.75,-5,-0.32
(1)-9与-4
(2)-2.25与2.5(3)|-4.9|与|-3.5|
(4)-—与-—(5)-1与-|-9|(6)|-11.2|与|-3.6|
75
2-—+—2×
(-14)+5×
365
(-+-)×
-(-72)×
10÷
(-21)
476
513
-(—-—+—)×
647×
[3+(-4)3]
444
9m-(2m+6)2m-(5m-3z)-(9z+m)
-5(9a-6)+5a7-(7y+10)-(5y+6)
2(-ab-8a)+(3a+7b)12(abc+8a)+8(9a+2abc)
8(xy+6z)-(-xy-2z)-7(pq+pr)-(6pq+pr)
7x1
—x-—=—0.1x-0.5=3.7-1x
663
81
—+5x=9+—x4(x-3)-3(x-5)=3
—(8x-2)=—x+65x+9(15-x)=-1
95
y-2y+1
——=7-——2.5x+10(x+8)=45
—(5-2x)=—(5x-1)7(4x+9)=1
1—,-3,0,-6.4
-—,18,-15,7
4—,-4,2,-0.08
(1)-9与-4
(2)-4与1.75(3)|-4.3|与|-0.6|
(4)-—与-—(5)-19与-|-3|(6)|-95.9|与|-4.2|
11
8-—-—18×
(-4)+22×
(-4)
781
-(-66)×
16÷
874
117
-(—+—+—)×
3362×
[16+(-4)3]
678
-6n-(3n+3)5n-(7n-9q)+(6q-9n)
3(7t-2)-3t4-(3b-5)+(6b+6)
6(-ab+2a)+(9a+4b)16(abc-6a)+3(2a+9abc)
7(xy-8z)-(-xy+7z)-2(pq-pr)-(6pq+pr)
—x-—=—0.3x-0.1=6+5.7x
923
—+4x=6+—x5(x-3)-4(x+9)=5
58
—(8x-8)=—x+37x+8(12-x)=-6
y+1y-3
——=3-——0.5x+2.5(x-9)=40
—(3+4x)=—(2x-3)3(2x-3)=5
93