初一数学上册计算题天天练精品48Word格式.docx
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(4)-—与-—(5)5与-|-2|(6)|-86.7|与|-9.5|
75
5、计算。
77
7-—+—5×
(-14)-3×
(-14)
918
961
(-+-)÷
-(-168)÷
18÷
(-21)
855
214
-(—-—-—)×
723×
[14+(-5)3]
383
6、合并同类项。
4a-(5a+1)a-(8a+6p)+(2p-a)
-8(4b-6)+6b8+(6b-8)-(2b+8)
6(-ab-3a)+(2a+2b)12(abc+4a)+8(9a-7abc)
7(xy+6z)+(-xy+6z)-3(pq-pr)-(7pq+pr)
7、解方程。
7x1
—x+—=—0.4x-0.2=9.3+0.2x
649
41
—-4x=6-—x2(x-1)-9(x-3)=2
94
13
—(9x+4)=—x-75x+7(14+x)=-1
65
y-2y+1
——=6+——2x-3.5(x+7)=15
25
12
—(4+2x)=—(3x+4)7(5x-1)=20
43
1—,4.5,0,-1.6
-—,-9.5,2,7.4
4—,-1.3,-7,-0.32
7
(1)-9与3
(2)-2.5与2.5(3)|-8.7|与|-1.2|
(4)-—与-—(5)1与-|-3|(6)|-38.1|与|-8.4|
53
113
9-—-—21×
(-15)-11×
(-15)
466
-(-156)÷
6×
(-24)
355
413
-(—-—+—)×
966×
[10-(-1)3]
384
-6n-(3n-6)n+(5n-6p)+(7p-8n)
7(9m-10)+9m6-(6y+4)-(6y+9)
8(ab-8a)+(4a-2b)5(abc-5a)-3(5a+5abc)
6(xy-6z)+(-xy+5z)-4(pq-pr)+(7pq-pr)
5x1
—x+—=—0.5x-0.2=9.2+8.4x
689
21
—+6x=2-—x8(x-8)+3(x+3)=1
76
11
—(2x-4)=—x-36x-9(10+x)=-2
95
y+3y+2
——=5+——3x+10(x-9)=15
—(5+3x)=—(3x-5)5(7x-1)=3
1—,-4.5,0,4
—,4.5,-12,7.1
5—,-4.85,4,-0.32
(1)-20与-4
(2)-3与-1.25(3)|-7.6|与|1|
(4)-—与-—(5)13与-|-7|(6)|-52.1|与|-4.7|
67
17
3+—-—27×
(-10)-10×
(-10)
612
712
(-+-)×
-(-120)×
16÷
843
429
728×
[14+(-3)2]
338
-4a+(8a-5)a-(8a+4q)+(2q-a)
-8(6s+4)+9s3+(4b-2)+(5b+7)
3(-ab+3a)+(9a+9b)10(abc+7a)+8(8a-6abc)
7(xy-4z)+(-xy+3z)-3(pq+pr)+(6pq+pr)
—x+—=—0.4x+0.5=0.2+7.5x
929
—-6x=8-—x9(x+9)+6(x-5)=19
72
14
—(8x-5)=—x-82x+4(14-x)=-9
75
y+2y+1
——=6+——2x-2(x-5)=50
—(3-2x)=—(4x+4)5(4x+1)=6
69
1—,1.5,0,6.4
—,6.5,-13,5.6
-8—,-4.65,-3,-0.24
(1)-9与3
(2)-3.25与-0.25(3)|-9.5|与|3.4|
(4)-—与-—(5)16与-|-7|(6)|-26.4|与|-4.6|
95
4+—+—30×
(-13)+13×
(-13)
318
115
8÷
(-18)
844
591
2564×
[17-(-4)3]
488
8x-(5x+5)x+(7x-3z)-(5z+8x)
-2(6m-1)+9m7+(8m-10)+(8m-10)
4(-ab-6a)-(7a+6b)16(abc-7a)-5(6a-9abc)
7(xy-7z)+(-xy-5z)-4(pq-pr)+(6pq+pr)
—x+—=—0.7x-0.1=8.3+2x
323
—+8x=3+—x5(x-7)+2(x+9)=5
33
—(9x-9)=—x-69x-7(8-x)=-4
25
y+1y+1
——=6+——2.5x-0.5(x-7)=10
46
—(5-3x)=—(2x-2)3(8x+9)=9
5—,-2.5,0,3.2
-—,19,-18,-2.2
2—,-3.35,8,-0.08
(1)-20与10
(2)-4.25与-1.75(3)|-8|与|0.1|
(4)-—与-—(5)5与-|-3|(6)|-85.9|与|-1.5|
39
513
7+—-—6×
(-10)+28×
312
-(-60)×
12÷
584
742
[14+(-1)3]
833
3b-(9b-3)5b-(9b-4d)-(4d+3b)
5(7t+1)+7t9-(9a+2)+(9a+6)