人教版七年级数学上册计算精品天天练100Word格式文档下载.docx
《人教版七年级数学上册计算精品天天练100Word格式文档下载.docx》由会员分享,可在线阅读,更多相关《人教版七年级数学上册计算精品天天练100Word格式文档下载.docx(12页珍藏版)》请在冰豆网上搜索。
77
5、计算。
17
2+—-—2×
(-3)+28×
(-3)
912
151
(-+-)÷
-(-108)×
14×
(-27)
848
644
-(—+—+—)×
1058×
[18+(-5)2]
735
6、合并同类项。
3y-(3y+7)y+(8y+6c)-(3c-y)
9(7n-3)-2n8+(9a-3)-(6a+3)
9(-ab+9a)+(3a-8b)12(abc-6a)-6(6a-3abc)
7(xy-5z)-(-xy+6z)-8(pq+pr)+(7pq-pr)
7、解方程。
7x1
—x+—=—0.8x-0.6=9.8-9.9x
643
21
—+4x=1-—x9(x+3)+3(x+6)=18
73
13
—(2x+4)=—x-45x-7(20-x)=-3
85
y+3y-2
——=2-——1x+0.5(x-4)=40
25
12
—(1-2x)=—(4x-3)5(8x-2)=16
99
4—,-5,0,-4.8
—,16,14,9.7
-9—,4.4,-2,-0.4
(1)-10与0
(2)-2.25与-1.25(3)|-7.7|与|0.3|
(4)-—与-—(5)17与-|-4|(6)|-58.6|与|-2.8|
83
9-—-—27×
(-20)+16×
(-20)
612
784
-(-120)÷
12×
(-6)
673
415
1261×
[8+(-4)2]
376
6m-(5m+6)8m-(7m+8c)+(8c-m)
4(2s-6)-3s3+(4n-7)-(8n+9)
8(-ab+8a)-(9a+5b)20(abc-3a)+9(3a-5abc)
6(xy-2z)-(-xy+4z)-6(pq+pr)-(4pq+pr)
—x-—=—0.1x+0.2=8.8-5.5x
629
—-8x=8-—x2(x-3)-4(x+2)=20
39
—(2x-7)=—x-27x-8(7-x)=-5
25
y+1y-1
——=6-——0.5x+5.5(x+8)=20
26
—(1-3x)=—(4x-3)5(8x+2)=16
79
4—,-1.5,0,4.8
—,-13,-1,-4
9
-6—,0.5,2,-0.32
(1)-13与-1
(2)-3与-0.75(3)|-9.2|与|-1.8|
(4)-—与-—(5)-5与-|-9|(6)|-71.8|与|-4.4|
1-—+—25×
(-12)-14×
(-12)
366
6÷
(-15)
455
911
2407×
[10+(-4)3]
856
8y+(7y+5)y+(7y-7d)-(5d+6y)
-6(9t+5)-2t6-(8m+2)+(5m-7)
8(ab+6a)-(7a-9b)2(abc-8a)+3(2a+7abc)
5(xy-3z)-(-xy-5z)-4(pq-pr)+(4pq+pr)
—x+—=—0.5x+0.9=7.9+9.5x
349
41
—+7x=9+—x2(x-2)-6(x-1)=16
77
14
—(5x-1)=—x-15x-4(11-x)=-1
55
y-3y+3
——=9+——3.5x-9.5(x-1)=30
36
—(5-3x)=—(2x-4)7(5x-4)=17
45
2—,-5,0,-4.8
-—,-8.5,19,2.5
2
-3—,-2.25,-8,-0.48
(1)-15与-6
(2)-2.5与0.25(3)|-4.6|与|0.7|
(4)-—与-—(5)0与-|-2|(6)|-47.2|与|-6.5|
11
8-—+—28×
(-3)+21×
134
(-+-)×
-(-84)×
8×
(-9)
645
191
-(—-—-—)×
3207×
[18+(-3)3]
588
-9y+(9y+2)7y-(8y-7z)-(4z+y)
-2(6s-6)+8s5+(3x+1)+(9x+3)
7(-ab+9a)+(7a+4b)16(abc+3a)+6(7a+4abc)
2(xy+7z)-(-xy+3z)-9(pq+pr)+(6pq-pr)
5x1
—x+—=—0.9x+0.5=1.7+3.4x
689
—+2x=7+—x6(x+5)-9(x+3)=17
—(8x+5)=—x-34x+6(5-x)=-1
y+3y+3
——=8+——0.5x-5.5(x-8)=35
—(4+2x)=—(5x+3)5(2x+1)=14
5—,-4.5,0,-8
-—,-3,0,7.5
6
-8—,2.9,1,0.48
(1)-19与2
(2)-3.75与2(3)|-6.6|与|-3.8|
(4)-—与-—(5)5与-|-10|(6)|-51.5|与|-3.6|
27
4+—+—1×
(-6)+13×
312
769
8÷
(-24)
878
615
-(—+—-—)×
1803×
[9-(-2)2]
566
-3n-(3n-2)n+(9n+2p)-(4p+5n)
-8(2n+7)-7n9+(6n+4)-(3n+1)