人教版七年级数学上册计算精品天天练53Word格式.docx
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87
5、计算。
111
1+—-—25×
(-12)+18×
(-12)
612
812
(---)÷
-(-132)÷
12×
(-6)
743
441
-(—+—-—)×
543×
[16+(-5)2]
336
6、合并同类项。
2b-(5b+2)3b+(4b+4q)-(5q-2b)
5(4a-4)-3a2-(2x+4)-(2x+1)
4(-ab+8a)+(6a-7b)5(abc+4a)-5(4a-4abc)
7(xy-7z)+(-xy-9z)-6(pq-pr)+(3pq+pr)
7、解方程。
7x1
—x+—=—0.4x-0.7=3.2+4.6x
346
21
—-2x=1-—x8(x-1)-8(x+1)=2
35
14
—(6x-6)=—x+54x+6(20-x)=-8
75
y+2y+3
——=3-——3.5x+6.5(x+2)=5
36
12
—(3-2x)=—(4x+1)3(5x+6)=16
45
-5—,5,0,-2.4
—,5.5,2,9
-8—,-0.95,4,0.32
(1)-13与6
(2)-4.75与1(3)|-8.1|与|0.7|
(4)-—与-—(5)-13与-|-2|(6)|-87.8|与|-2.3|
69
513
5-—+—21×
(-10)-28×
(-10)
312
115
(---)×
-(-126)×
18÷
(-27)
654
511
-(—-—-—)×
808×
[3-(-5)2]
454
-9b-(7b-4)b+(7b-3q)+(3q+b)
-3(9n-3)-7n9-(5m+4)+(9m+5)
8(ab+2a)-(2a+2b)9(abc+2a)+7(7a+4abc)
3(xy+6z)+(-xy+9z)-6(pq-pr)+(4pq+pr)
—x+—=—0.4x+0.5=8.8+4.5x
349
—+9x=7-—x5(x+1)-6(x+7)=7
93
13
—(8x-4)=—x+53x+9(6+x)=-6
y-1y-1
——=5-——1.5x-1.5(x+2)=20
46
—(5-3x)=—(5x+5)2(7x+7)=19
-1—,2.5,0,-7.2
—,-24.5,-5,0.7
4—,-0.8,8,-0.56
9
(1)-10与-6
(2)-2.75与1(3)|-6.4|与|-2.7|
(4)-—与-—(5)-2与-|-8|(6)|-62.3|与|-8.7|
25
11
1-—-—17×
(-17)-22×
(-17)
117
(-+-)÷
-(-168)÷
10×
(-9)
778
159
-(—-—+—)×
1442×
[11+(-3)2]
368
-7x+(2x-6)7x+(5x+5q)+(7q-x)
7(7t+2)+4t8+(7x-1)+(7x+1)
2(-ab+2a)-(5a-6b)20(abc-2a)+7(6a-2abc)
5(xy-3z)+(-xy+4z)-6(pq+pr)+(2pq+pr)
—x+—=—0.4x+0.4=1.1-7x
663
81
—-6x=8+—x5(x+9)-3(x+2)=18
—(6x-1)=—x-83x+6(10-x)=-9
85
y+1y-1
——=6-——5x-5.5(x+9)=50
45
—(2-2x)=—(3x-5)4(4x+9)=8
89
1—,-1.5,0,2.4
-—,-12.5,-19,8.7
4
4—,2.35,-1,0.72
(1)-13与0
(2)-2.25与2(3)|-4.1|与|-0.2|
(4)-—与-—(5)-1与-|-2|(6)|-8.3|与|-4.7|
79
17
4-—+—25×
(-10)+30×
912
-(-150)×
10÷
563
1207×
[7-(-3)3]
-9b-(5b-7)b+(5b-4c)+(3c-b)
4(7a+4)-6a3-(4y-1)-(8y-10)
7(ab+4a)-(9a-9b)8(abc-6a)+9(5a+2abc)
7(xy+5z)+(-xy+2z)-7(pq+pr)-(6pq+pr)
5x1
—x-—=—0.3x+0.2=9.7-0.9x
383
—+6x=8-—x7(x+3)-3(x+7)=18
78
—(9x+7)=—x+76x+4(9+x)=-2
y+3y+2
——=5+——4x-0.5(x-4)=45
26
—(5-2x)=—(5x-1)9(4x-1)=12
83
1—,4.5,0,8
-—,24,2,-3.8
-3—,0.7,-2,-0.08
(1)-11与10
(2)-2.25与-1(3)|-5.2|与|-0.9|
(4)-—与-—(5)-19与-|-2|(6)|-46.4|与|-1.5|
59
2+—+—27×
(-2)-22×
(-2)
132
-(-174)÷
4÷
343
314
-(—+—+—)×
366×
[10+(-4)2]
433
6m-(2m-9)m+(2m-8c)-(5c-6m)
-4(7b+1)-3b10-(5b+9)+(