初一数学上册计算题天天练精品16Word文档下载推荐.docx
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5、计算。
77
3+—+—9×
(-17)-29×
(-17)
612
183
(-+-)×
-(-102)÷
12÷
(-9)
874
581
-(—-—+—)×
3365×
[17-(-1)2]
678
6、合并同类项。
4n-(7n+1)7n+(6n-2q)-(6q-5n)
9(3s-3)+7s9-(7x-7)-(9x-10)
7(-ab+3a)+(5a-7b)19(abc+8a)-6(7a+6abc)
7(xy+5z)-(-xy+5z)-7(pq-pr)+(5pq+pr)
7、解方程。
5x1
—x+—=—0.6x-0.2=6.8+8.9x
323
21
—+3x=2-—x8(x+7)+5(x-3)=7
77
13
—(2x-2)=—x-74x-4(16+x)=-7
25
y-1y+2
——=3-——1x+2.5(x-7)=30
25
12
—(1-3x)=—(5x+4)3(2x-2)=3
27
-5—,2.5,0,-0.8
—,-3,17,-4
2
8—,2.6,-6,-0.4
7
(1)-20与8
(2)-3.25与1.25(3)|-7.2|与|-2|
(4)-—与-—(5)8与-|-2|(6)|-33.8|与|-5.7|
79
57
5-—-—16×
(-13)+27×
(-13)
618
763
(---)÷
-(-114)×
2÷
(-3)
654
211
-(—-—-—)×
729×
[5-(-3)3]
383
-7m-(5m-3)9m+(7m-5z)+(6z-9m)
7(8m+2)-7m4+(9b-7)+(2b+9)
9(ab-6a)+(7a-4b)3(abc-2a)-9(5a+8abc)
9(xy-2z)-(-xy+8z)-4(pq-pr)+(3pq+pr)
7x1
—x+—=—0.2x-0.2=2-4.8x
923
—+5x=9+—x9(x+5)-7(x+9)=3
95
11
—(7x+1)=—x-68x-5(9-x)=-7
45
y+2y-1
——=5-——1x+1.5(x+1)=30
35
—(5-4x)=—(4x+2)9(4x+3)=13
-4—,-0.5,0,-6.4
—,-2.5,-5,-3.1
-6—,3.9,3,0.4
(1)-20与-5
(2)-4.75与-1.25(3)|-5|与|-3|
(4)-—与-—(5)-20与-|-7|(6)|-84|与|-4.4|
43
8+—-—4×
(-4)+13×
(-4)
912
268
(---)×
-(-180)÷
18÷
(-27)
377
561
-(—+—-—)×
2103×
[12-(-3)2]
657
-7x-(9x-9)x+(8x-2s)-(2s-3x)
5(9m-1)+5m5-(5y-8)-(6y+8)
7(ab+6a)-(5a-2b)6(abc-4a)-5(9a+2abc)
2(xy+6z)-(-xy-9z)-5(pq+pr)-(5pq+pr)
—x+—=—0.1x-0.4=7.6-9x
663
—-3x=5+—x5(x-9)+5(x-6)=6
37
—(7x+3)=—x-29x-6(4-x)=-9
55
y+1y-2
——=5-——1x+7(x+3)=40
—(4-2x)=—(5x-1)8(3x+7)=12
59
4—,-4,0,1.6
—,12.5,13,4.5
8
-1—,-1.85,6,-0.24
(1)-19与6
(2)-4.25与-1(3)|-4|与|2.2|
(4)-—与-—(5)13与-|-10|(6)|-94.9|与|-9.8|
47
11
1-—+—24×
(-17)-5×
315
411
-(-90)÷
6÷
(-18)
365
617
-(—+—+—)×
2949×
[3-(-5)3]
776
9a+(7a+5)a-(2a+4q)+(9q+a)
8(2a+3)+9a3+(4b+2)-(2b-5)
2(-ab-2a)-(5a+3b)7(abc-8a)-2(2a-4abc)
2(xy+3z)+(-xy+2z)-6(pq+pr)-(9pq+pr)
—x-—=—0.6x+0.3=7.1-1.5x
926
41
—-7x=3+—x8(x-5)+8(x-1)=3
52
14
—(5x-9)=—x+22x+6(13-x)=-5
65
y+2y+1
——=5+——1.5x+9(x-8)=20
36
—(4+4x)=—(2x-2)3(4x-2)=3
57
4—,3.5,0,-3.2
-—,7.5,-5,2.4
3—,3.05,-8,-0.48
(1)-16与-3
(2)-3.5与1.25(3)|-9.8|与|-1.1|
(4)-—与-—(5)-6与-|-1|(6)|-44.7|与|-7.1|
85
113
3+—-—23×
(-3)+28×
547
-(-108)÷
14÷
458
151
2881×
[5+(-2)3]
866
-5b+(5b-5)9b-(9b-2p)-(7p+b)
-9(4a+5)+9a1+(8b+8)-(7b+7)
8(ab+9a)+(8a-5b)3(a