初一数学上册计算题天天练强烈推荐86文档格式.docx
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113
9+—-—22×
(-9)-2×
(-9)
918
519
(---)×
-(-66)÷
8÷
(-27)
438
148
-(—-—+—)×
1058×
[17-(-1)3]
537
6、合并同类项。
3m-(7m-8)m+(8m-9q)-(2q+5m)
4(2a-7)+8a4+(8y+6)-(7y+4)
4(-ab+9a)+(4a+9b)14(abc+2a)+3(8a+2abc)
9(xy-5z)+(-xy+6z)-8(pq-pr)-(6pq+pr)
7、解方程。
5x1
—x-—=—0.5x-0.8=9.8-5.8x
663
81
—-7x=5+—x5(x-6)-8(x-8)=13
36
13
—(7x+6)=—x+48x-6(4-x)=-8
35
y+3y-1
——=1+——4x-3(x-9)=45
36
12
—(2-4x)=—(5x-5)3(6x-7)=4
53
3
4—,4,0,4.8
-—,3,-9,2.9
8—,0.35,-2,0.64
(1)-19与-8
(2)-4与-1.75(3)|-6.4|与|2.2|
(4)-—与-—(5)-14与-|-2|(6)|-68.8|与|-8.1|
95
511
1+—-—29×
(-3)-28×
(-3)
915
914
(-+-)÷
-(-126)÷
6×
(-24)
855
177
-(—+—+—)×
2889×
[19+(-5)3]
686
-7a+(2a-7)9a-(8a+7p)+(9p+a)
2(9t+6)-5t2-(6n-4)+(2n+5)
9(-ab+4a)-(4a-5b)16(abc+4a)+6(6a+3abc)
5(xy-8z)+(-xy+6z)-5(pq-pr)-(5pq-pr)
—x-—=—0.6x+0.4=0.1+9.3x
629
21
—-2x=3-—x9(x-6)+4(x+1)=4
59
—(8x-5)=—x+57x-9(19+x)=-1
55
y-2y+3
——=5+——5x-3(x-4)=10
26
—(5+3x)=—(3x+3)9(7x+9)=18
95
1—,-3.5,0,6.4
—,7,-3,7.3
8
-1—,2.9,7,-0.08
7
(1)-9与9
(2)-5与1.75(3)|-5.6|与|-1.5|
(4)-—与-—(5)-6与-|-6|(6)|-75.6|与|-1.6|
59
711
1-—-—15×
(-5)+7×
(-5)
312
115
(---)÷
-(-84)×
4×
744
165
2943×
[20-(-1)2]
776
6a-(6a-8)a+(4a+6p)+(2p-8a)
-6(5t-4)-6t4-(4n-2)-(4n-8)
7(ab-3a)-(5a+9b)20(abc-6a)+2(4a-3abc)
6(xy+2z)+(-xy+9z)-3(pq-pr)+(7pq-pr)
7x1
—x-—=—0.3x+0.8=7.3-3.5x
343
—+4x=7-—x9(x+2)-5(x+9)=8
97
14
—(8x+3)=—x+82x-4(20+x)=-9
45
y+3y+2
——=4-——2.5x+4.5(x+4)=40
46
—(4+3x)=—(4x+4)6(4x+2)=11
2—,2.5,0,1.6
-—,14.5,-15,-0.1
-2—,0.7,-8,-0.72
(1)-16与4
(2)-4与-2(3)|-9.4|与|1.2|
(4)-—与-—(5)1与-|-3|(6)|-91.7|与|-0.8|
27
9+—+—5×
(-3)+12×
668
-(-138)×
12÷
777
818
-(—+—-—)×
3435×
[18-(-5)3]
9b-(9b-2)9b+(5b-3s)-(7s+b)
-9(4b+9)-9b10+(2x-5)+(2x+10)
4(-ab+3a)-(3a-9b)7(abc+8a)+2(8a+3abc)
8(xy-8z)-(-xy+8z)-8(pq-pr)+(5pq-pr)
—x+—=—0.3x-0.3=2.9+2.3x
363
—-6x=7+—x4(x+3)-4(x-6)=5
—(6x+9)=—x+13x+5(14-x)=-3
85
y+1y+1
——=8+——0.5x+2(x+3)=45
—(4+2x)=—(3x+1)9(9x+1)=7
47
4
-3—,4,0,2.4
—,24,-4,-5.5
4—,-2.65,7,-0.64
(1)-11与-2
(2)-2.75与-1.75(3)|-9.8|与|0.7|
(4)-—与-—(5)14与-|-6|(6)|-25.4|与|-7.3|
49
713
4+—+—11×
(-4)-2×
(-4)
615
983
-(-174)×
874
956
1604×
[18-(-1)3]
845
9x-(6x+3)x+(7x-4p)-(6p-7x)
8(9a-3)-2a7-(6b+6)+(3b+6)
5(ab+6a)+(2a-4b)16(abc+4a)+5(8a-4abc)
8(xy-8z)-(-xy-6z)-5(pq+pr)+(2pq-pr)
—x+—=—0.6x+0.9=2.2+4.3x
683
41
—-7x=8-—x4(x+1)-6(x-3)=10
99
—(9x+1)=—x+62x+7(18+x)=-7
65
y+3y+3
——=6-——1x-2(x-5)=30
35
—(4-4x)=—(2x-4)4(7x+7)=9