人教版七年级数学上册计算精品天天练36Word下载.docx
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5、计算。
71
6-—+—20×
(-10)-3×
(-10)
315
769
(---)×
-(-114)÷
14×
(-27)
678
936
-(—-—-—)×
2243×
[11-(-2)3]
847
6、合并同类项。
-9a-(7a-5)9a-(4a-6q)-(8q+3a)
7(5a-1)+3a2+(5b-4)+(6b+5)
9(ab+4a)-(8a+6b)13(abc-2a)-8(6a-4abc)
2(xy-2z)+(-xy-6z)-2(pq+pr)-(6pq+pr)
7、解方程。
5x1
—x+—=—0.1x-0.2=2.5+3.5x
963
21
—-3x=4-—x7(x-5)-5(x+2)=14
57
12
—(2x-4)=—x+34x-2(9-x)=-1
25
y-1y-2
——=1+——1x+4(x-1)=10
25
—(4-2x)=—(3x+2)3(2x-2)=4
35
-4—,-4.5,0,1.6
—,7,-16,-9.8
4—,1.95,-7,-0.4
(1)-18与3
(2)-2.75与-2(3)|-5.6|与|2.7|
(4)-—与-—(5)13与-|-2|(6)|-28.4|与|-9.6|
49
51
6-—-—5×
(-19)+10×
(-19)
918
755
-(-108)×
2÷
(-24)
646
751
-(—+—+—)×
969×
[4+(-3)2]
843
2m-(2m-5)m-(6m+7p)+(4p+m)
-9(9b-8)+7b7-(7m-3)+(5m+10)
9(-ab+8a)+(8a+4b)14(abc-9a)-8(8a-9abc)
3(xy+2z)+(-xy-7z)-3(pq-pr)+(8pq-pr)
—x+—=—0.6x-0.1=7.6+8.6x
389
81
—+3x=4-—x3(x-7)+6(x+5)=8
93
14
—(8x-7)=—x+59x-7(19+x)=-9
y+1y-1
——=3-——1.5x+2(x-3)=50
35
—(5+4x)=—(4x+5)4(3x+7)=5
69
5—,-1.5,0,-8
—,9.5,-2,9.4
8
-4—,-1.2,3,0.32
(1)-14与10
(2)-5与0(3)|-7.8|与|0.4|
(4)-—与-—(5)-14与-|-8|(6)|-43.6|与|-7.1|
43
111
4-—+—26×
(-2)+10×
(-2)
915
515
(-+-)÷
-(-102)÷
18×
(-6)
486
448
-(—+—-—)×
639×
[2-(-5)3]
337
8n-(8n-5)n+(2n-4q)+(2q-n)
-2(5a-4)+8a9+(4y+3)+(8y+1)
6(ab+5a)+(3a+5b)2(abc+3a)-5(9a+5abc)
9(xy+8z)+(-xy-6z)-5(pq-pr)-(5pq+pr)
—x+—=—0.8x-0.3=0.3+9x
323
41
—+4x=6-—x7(x+4)-4(x+7)=5
56
11
—(8x+5)=—x+83x-3(11+x)=-9
65
y+3y+2
——=2+——3x-6(x+5)=10
36
—(4-3x)=—(4x+5)4(4x-4)=4
79
-3—,-5,0,1.6
-—,13,-2,-2.8
4
-5—,4.35,-10,-0.32
(1)-12与9
(2)-3.5与2(3)|-9.8|与|3|
(4)-—与-—(5)5与-|-9|(6)|-6.5|与|-2.5|
65
17
5+—+—23×
(-20)-23×
(-20)
251
-(-72)÷
16×
(-12)
365
141
-(—-—+—)×
722×
[2+(-3)2]
634
-6a+(4a+8)a-(2a-9q)-(4q-a)
-4(2b-4)-6b8+(4a+6)-(2a+4)
9(ab-4a)+(2a+3b)12(abc+4a)+7(8a-7abc)
8(xy+3z)-(-xy-9z)-2(pq+pr)-(6pq-pr)
—x-—=—0.5x-0.3=4.5+2.8x
369
—+5x=5+—x3(x+6)-9(x-1)=7
77
—(5x-3)=—x+98x-4(13-x)=-7
45
y+2y-3
——=5-——2.5x+6(x-6)=20
46
—(1+3x)=—(3x-3)6(8x+7)=11
-2—,-2,0,-8
-—,-19.5,-8,2.2
-1—,3.5,5,0.4
(1)-13与4
(2)-2.75与1.25(3)|-6.7|与|1.6|
(4)-—与-—(5)1与-|-9|(6)|-70.6|与|-8.3|
29
11
8-—-—14×
(-18)-4×
(-18)
318
818
16÷
(-15)
777
328
846×
[8-(-4)3]
437
-8b-(8b+7)b-(3b+5z)-(6z-8b)
9(8s-4)+2s6-(4y+1)+(7y+4)
6(-ab-9a)+(7a-7b