人教版初一数学上册计算能力专项训练67Word文档下载推荐.docx
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51
3+—+—1×
(-10)-13×
(-10)
915
561
(-+-)×
-(-138)÷
12×
(-6)
658
111
-(—-—-—)×
3362×
[9+(-2)3]
678
6、合并同类项。
-3m+(6m-8)2m+(5m+8c)-(5c-m)
4(9s-2)+8s5-(9x+7)-(4x-4)
3(ab-9a)-(9a-2b)13(abc-3a)-2(9a+2abc)
6(xy-8z)+(-xy-8z)-4(pq-pr)-(8pq+pr)
7、解方程。
7x1
—x-—=—0.1x-0.5=5.5-7.5x
643
41
—+2x=9-—x5(x-7)+7(x+1)=15
56
12
—(4x+7)=—x+38x+5(19+x)=-4
35
y+3y-1
——=9-——1.5x-8.5(x+2)=5
35
—(3-2x)=—(4x-1)7(6x+5)=8
77
2
-4—,2.5,0,-0.8
—,-23.5,-2,8.5
6—,-2.9,10,-0.8
(1)-15与-4
(2)-3.75与-2(3)|-7.9|与|-2.8|
(4)-—与-—(5)-7与-|-4|(6)|-4.6|与|-7.1|
39
113
9-—+—27×
(-17)+7×
(-17)
612
216
(---)÷
-(-96)÷
14×
(-18)
385
511
1601×
[17-(-5)2]
485
7m-(2m+8)m-(5m-4p)+(8p-8m)
5(8b-5)+6b5-(9n-9)+(5n-3)
2(-ab+2a)+(3a+6b)4(abc-4a)+7(8a-6abc)
7(xy+5z)+(-xy+7z)-4(pq+pr)-(6pq-pr)
—x+—=—0.8x+0.4=3.1+8.2x
329
81
—+7x=5+—x6(x-3)+9(x-8)=6
59
14
—(8x-1)=—x+32x+4(17+x)=-1
75
y+3y+2
——=7+——4.5x+8(x-5)=15
—(2+3x)=—(4x-3)4(9x+8)=5
47
-3—,-4.5,0,5.6
—,-3.5,16,-2.9
3
-9—,-1.1,-7,-0.56
9
(1)-15与-3
(2)-3.75与1.25(3)|-9.5|与|-0.8|
(4)-—与-—(5)-16与-|-9|(6)|-89.4|与|-5.1|
43
511
5+—+—30×
(-15)+8×
(-15)
114
-(-84)×
10÷
363
771
-(—+—+—)×
1928×
[19+(-1)2]
864
-5n+(8n+7)8n-(3n+4q)+(4q-7n)
-9(8t-3)-8t7+(4b+4)+(4b+5)
5(ab+7a)+(8a-6b)10(abc-9a)-3(5a+8abc)
6(xy+8z)-(-xy+4z)-9(pq-pr)-(4pq+pr)
5x1
—x-—=—0.5x-0.5=7.5+1.7x
366
—-5x=7-—x5(x-5)-9(x-6)=4
52
—(9x+2)=—x-45x-7(19+x)=-7
y-1y+3
——=4-——4x-8(x+8)=40
26
—(5+4x)=—(3x+1)7(9x+3)=17
73
-4—,3.5,0,0.8
—,-14.5,-7,-0.9
-9—,-0.35,5,0.08
(1)-17与-1
(2)-4.75与2(3)|-8.6|与|2.8|
(4)-—与-—(5)16与-|-2|(6)|-4.1|与|-8.9|
75
11
9-—+—28×
(-12)+12×
(-12)
519
-(-132)×
14÷
(-24)
438
191
1204×
[13-(-3)2]
-5a+(6a+8)a-(7a+4z)+(2z+3a)
-3(3b-8)-3b8+(7y+7)-(4y+5)
2(ab-7a)-(4a-4b)17(abc-8a)+4(3a-8abc)
7(xy+9z)+(-xy-3z)-3(pq+pr)-(5pq-pr)
—x-—=—0.1x-0.1=5.9+4.5x
649
21
—+4x=1+—x8(x+5)+5(x-9)=1
13
—(2x+8)=—x-98x+9(15-x)=-9
y-1y+2
——=6+——0.5x-7.5(x+1)=50
—(2-3x)=—(3x-5)9(9x-7)=11
63
4—,-0.5,0,0.8
—,-6,18,-1.6
6
7—,-3.45,-2,0.24
(1)-16与0
(2)-4.75与-1.75(3)|-7.7|与|-1.3|
(4)-—与-—(5)3与-|-4|(6)|-82.8|与|-5.8|
67
77
5+—-—4×
(-4)+26×
(-4)
416
-(-78)÷
4×
587
711
2107×
[7+(-4)2]
657
-9a+(4a+6)a-(8a-6c)+(7c-6a)
-7(7m+2)-8m