初一数学上册计算题天天练强烈推荐27文档格式.docx
《初一数学上册计算题天天练强烈推荐27文档格式.docx》由会员分享,可在线阅读,更多相关《初一数学上册计算题天天练强烈推荐27文档格式.docx(12页珍藏版)》请在冰豆网上搜索。
(-6)-18×
(-6)
915
112
(-+-)×
-(-90)×
14×
753
595
-(—-—-—)×
2884×
[20+(-4)2]
686
6、合并同类项。
-5a+(6a-5)7a-(5a+6d)+(4d+a)
-7(2n+9)+9n7+(3a-8)+(2a-8)
6(ab+6a)-(9a-7b)18(abc-8a)-9(4a-2abc)
8(xy+2z)+(-xy+3z)-4(pq-pr)-(6pq-pr)
7、解方程。
7x1
—x+—=—0.6x-0.3=1.5+8.8x
386
21
—+9x=4+—x2(x-5)-4(x-4)=1
92
13
—(2x+3)=—x-42x+5(10+x)=-6
75
y-1y+1
——=7-——3.5x-3.5(x+1)=40
36
12
—(2+4x)=—(3x+1)8(3x+5)=14
67
5—,2,0,4.8
-—,-20.5,20,-8.4
2
2—,2.15,2,0.72
(1)-18与-6
(2)-4.5与0.25(3)|-7.5|与|1.4|
(4)-—与-—(5)0与-|-6|(6)|-65.8|与|-0.7|
75
513
1+—-—4×
(-11)-6×
(-11)
618
711
-(-174)÷
10×
(-27)
835
111
-(—+—-—)×
1807×
[10-(-2)3]
665
-6a+(6a+2)6a-(7a+9c)-(2c-3a)
-3(6t+9)-5t3+(2m+4)-(8m-7)
4(ab+7a)+(6a+9b)17(abc-4a)-4(8a-4abc)
2(xy+3z)+(-xy+7z)-2(pq+pr)+(6pq+pr)
5x1
—x-—=—0.4x-0.5=4.4-5.1x
326
81
—+7x=1-—x9(x-8)-3(x-3)=18
74
11
—(5x+5)=—x-26x+9(9+x)=-2
95
y+3y-2
——=7+——2x+9(x-4)=40
25
—(1+4x)=—(5x-1)8(6x+9)=5
65
3—,4,0,3.2
—,5,-14,2.2
4
-9—,0.55,8,-0.72
7
(1)-20与7
(2)-4.25与-1.75(3)|-7|与|3.2|
(4)-—与-—(5)19与-|-2|(6)|-76.4|与|-0.9|
89
57
2+—+—7×
(-8)+5×
(-8)
912
511
-(-60)×
12×
(-15)
444
311
-(—+—+—)×
1609×
[12-(-2)3]
458
-9x-(3x+5)9x-(8x+3z)-(5z-9x)
4(4b+4)-8b3+(6a-8)-(4a-3)
3(-ab+5a)+(3a+9b)15(abc+7a)-6(5a-5abc)
4(xy-6z)-(-xy+3z)-2(pq-pr)+(9pq-pr)
—x+—=—0.5x+0.9=2.1+5.8x
343
—-4x=4+—x3(x-7)+4(x-8)=15
79
14
—(2x-9)=—x-82x-3(20+x)=-6
25
y-3y+3
——=7-——4.5x+1(x-6)=10
45
—(3+3x)=—(3x+1)5(3x+1)=4
43
3—,-1.5,0,8
—,10,9,7.1
3—,0.3,-10,0.72
(1)-19与3
(2)-5与1.5(3)|-5.3|与|-1.7|
(4)-—与-—(5)2与-|-5|(6)|-58.1|与|-0.5|
95
11
9+—-—16×
(-10)-29×
(-10)
612
165
(-+-)÷
-(-150)÷
18×
(-3)
474
761
3201×
[12+(-3)3]
858
4a-(9a-2)2a-(7a+8s)-(7s-a)
-2(8m+8)+9m9-(4y-10)+(8y-9)
9(-ab-7a)+(5a+8b)20(abc+9a)-7(2a-2abc)
9(xy-8z)+(-xy+8z)-6(pq+pr)+(2pq+pr)
—x+—=—0.1x+0.2=9+4.7x
689
41
—-9x=6+—x4(x+2)-6(x-6)=11
98
—(7x-3)=—x+38x+2(12+x)=-8
85
y-3y-3
——=6-——3.5x+1(x-7)=45
—(3+3x)=—(2x+4)7(6x+3)=4
77
-3—,-5,0,3.2
-—,-20.5,-14,2.8
-6—,-3.1,-8,0.64
(1)-12与-1
(2)-3.25与-0.5(3)|-8.7|与|-1.5|
(4)-—与-—(5)-18与-|-6|(6)|-35.6|与|-5.9|
87
113
4-—-—2×
(-3)+28×
615
821
(---)×
-(-156)×
2×
(-24)
738
157
3845×
[1-(-3)3]
868
-7x-(3x+2)x-(2x+3d)-(7d+4x)
9(4s+6)+7s2+(2a+9)+(7a-2)
5(-ab-9a)-(7a+7b)9(abc-2a)-9(3a+5abc)
6(xy-3z)+(-xy-3z)-7(pq-pr)+(8pq+pr)
—x-—=—0.4x+0.4=0.3-1.8x
649
—+3x=4-—x8(x+8)+3(x+2)=18
—(6x-8)=—x+16x+9(14+x)=-1
35
y-2y+2
——=8+——3x+4(x-7)=45
35
—(1-3x)=—(5x-1)3(7x+8)=19
23