初一数学上册计算题天天练强烈推荐11Word格式.docx
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5、计算。
511
7+—-—28×
(-7)-9×
(-7)
318
916
(-+-)×
-(-72)÷
10÷
(-27)
857
761
-(—-—-—)×
3365×
[4-(-4)3]
876
6、合并同类项。
7b-(6b+2)b+(7b-8p)-(3p+7b)
2(6m+4)-2m5-(2n-4)-(7n+2)
9(ab+3a)-(3a-3b)8(abc-6a)+3(6a+4abc)
7(xy+7z)-(-xy+3z)-2(pq-pr)-(5pq+pr)
7、解方程。
5x1
—x-—=—0.6x-0.5=8.3+1.4x
646
41
—-9x=8-—x3(x-7)-6(x+8)=6
96
11
—(2x-8)=—x-99x-7(3-x)=-7
75
y+3y+3
——=1+——1x+2(x-3)=10
25
12
—(4-3x)=—(3x+5)5(3x+7)=18
69
-3—,-3,0,8
—,-6,6,2.3
-2—,4.55,-5,0.72
9
(1)-13与2
(2)-4.25与2.25(3)|-7.6|与|-3|
(4)-—与-—(5)2与-|-3|(6)|-46.1|与|-8.8|
89
713
8-—-—25×
(-11)-24×
(-11)
912
311
(---)÷
-(-66)÷
6×
(-6)
473
164
844×
[5+(-1)3]
7y-(6y+4)9y-(6y-6s)-(3s+y)
7(3t+6)-2t3+(9n+3)-(6n+8)
6(-ab-2a)+(5a-7b)17(abc-5a)+7(9a+8abc)
9(xy+9z)+(-xy-9z)-9(pq+pr)-(2pq-pr)
—x+—=—0.3x-0.3=3.3-4.4x
326
81
—-5x=4-—x9(x-8)+4(x-3)=14
59
—(9x+3)=—x-86x+2(11+x)=-2
25
y-1y-1
——=4-——1.5x-1.5(x-6)=50
46
—(4+3x)=—(2x+1)6(6x-7)=4
85
4
-2—,-4,0,4
—,-20,-19,-6.8
-9—,-4.6,3,0.72
(1)-14与9
(2)-3.25与1.75(3)|-5.2|与|0.9|
(4)-—与-—(5)-12与-|-7|(6)|-5.3|与|-5|
73
513
2-—+—1×
(-7)-6×
915
754
-(-108)×
2÷
663
525
-(—+—-—)×
726×
[8-(-1)2]
436
-7n-(2n+2)7n-(6n+4z)+(8z+n)
3(4a-8)+5a10+(6x-3)+(6x-5)
9(ab+6a)-(3a+8b)2(abc+5a)-6(4a+4abc)
6(xy-4z)-(-xy-2z)-5(pq-pr)-(7pq-pr)
—x-—=—0.8x-0.7=9.9-1.1x
943
—-3x=7+—x7(x+7)-7(x-4)=2
38
13
—(5x-3)=—x-22x+8(17+x)=-6
y-1y+2
——=2+——1.5x+0.5(x+4)=30
—(1+2x)=—(2x+5)8(2x-1)=11
45
-5—,2.5,0,0.8
-—,-24,10,-2.3
2—,-2.6,9,-0.48
(1)-17与-7
(2)-2.75与1(3)|-5.2|与|1.7|
(4)-—与-—(5)16与-|-2|(6)|-15.5|与|-3.2|
53
71
9+—+—16×
(-6)+3×
312
693
-(-90)×
2×
(-9)
784
531
-(—+—+—)×
966×
[3+(-2)2]
446
-5y-(2y+5)y-(7y-4c)-(8c-y)
7(6b+7)+7b9-(3n-5)-(5n+10)
8(-ab+2a)-(4a+8b)19(abc+2a)+5(3a-5abc)
7(xy-3z)+(-xy+2z)-6(pq-pr)-(5pq+pr)
—x-—=—0.7x+0.9=8.7+7.3x
626
21
—-9x=7+—x9(x+7)-2(x+5)=14
35
14
—(5x+6)=—x+44x-7(14-x)=-2
y+2y-2
——=9+——1x+0.5(x+1)=40
26
—(1+4x)=—(4x-3)2(5x+3)=17
39
2—,-4,0,5.6
—,6,-10,4.5
8
2—,-3.35,5,-0.56
(1)-9与10
(2)-5与2.5(3)|-4.5|与|0.5|
(4)-—与-—(5)-18与-|-6|(6)|-12.1|与|-7.2|
63
113
3-—+—10×
(-9)+20×
593
-(-144)×
6÷
(-21)
684
111
1261×
[14+(-4)2]
763
7y-(4y-1)2y-(4y+9s)+(3s-y)
-3(7s+6)-5s10+(8b-9)-(2b-2)
4(-ab+2a)-(6a+6b)