人教版初一数学上册计算能力专项训练107Word格式.docx
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111
4+—+—22×
(-1)-1×
(-1)
618
134
(---)÷
-(-90)×
14×
(-9)
443
715
-(—+—+—)×
1089×
[8+(-4)3]
636
6、合并同类项。
-9b-(8b+5)b+(2b-6d)+(6d+b)
-8(5t-3)+7t4+(5x+2)+(7x+3)
2(ab-3a)-(8a-5b)5(abc+9a)+8(9a-6abc)
2(xy+8z)+(-xy+3z)-5(pq-pr)-(2pq-pr)
7、解方程。
5x1
—x+—=—0.1x+0.7=3-3.9x
929
41
—+9x=3+—x7(x+8)+9(x+9)=1
76
14
—(2x+2)=—x+89x-2(13+x)=-5
95
y-2y+3
——=8+——2.5x+0.5(x+4)=20
25
12
—(5-3x)=—(2x-3)5(2x+4)=6
43
-3—,-0.5,0,-8
-—,4.5,19,-2.8
4
-1—,-2.3,-3,0.56
(1)-15与10
(2)-3.25与-1.5(3)|-5.8|与|3.4|
(4)-—与-—(5)18与-|-2|(6)|-42.8|与|-2.5|
35
513
9+—-—7×
(-2)-19×
(-2)
711
(---)×
-(-126)÷
6×
(-24)
666
314
484×
[6+(-5)3]
-7y+(8y-5)y-(6y-5q)-(3q+3y)
6(7m-7)-8m3-(5b+3)+(5b+7)
4(ab+2a)-(4a+5b)7(abc-5a)+8(7a+7abc)
7(xy+8z)-(-xy-6z)-4(pq+pr)-(2pq-pr)
—x-—=—0.8x+0.1=0.3-2.3x
683
81
—-2x=3+—x7(x-4)-6(x-8)=18
94
11
—(9x+9)=—x-58x+5(18-x)=-5
65
——=4-——1x+7(x+5)=5
—(3-2x)=—(3x-3)4(6x+3)=6
25
-4—,2.5,0,-6.4
-—,-6.5,5,8.7
6
8—,2.2,-4,-0.4
7
(1)-11与-2
(2)-2.75与2.25(3)|-9.3|与|1.2|
(4)-—与-—(5)-13与-|-1|(6)|-20.2|与|-6.2|
85
51
2-—+—28×
(-3)-1×
(-3)
912
694
(-+-)÷
-(-156)×
2÷
785
436
607×
[7+(-5)2]
345
2n+(2n-8)3n+(7n+5c)-(9c+3n)
-6(5n-3)-3n8+(2x+5)+(7x-6)
7(ab-2a)-(7a+3b)11(abc-3a)-8(3a+8abc)
7(xy+7z)-(-xy+9z)-3(pq-pr)-(8pq+pr)
7x1
—x+—=—0.6x+0.8=4.8+2.8x
349
—-6x=6-—x4(x-9)+9(x+5)=6
—(7x-4)=—x-48x-3(17-x)=-9
y+2y+1
——=7-——1.5x+3.5(x+7)=20
—(3-4x)=—(2x-2)2(5x+6)=4
37
3—,1.5,0,7.2
-—,-10,-2,3.2
3
-1—,-1.5,3,-0.4
(1)-20与7
(2)-2.5与2(3)|-6.5|与|3.4|
(4)-—与-—(5)-7与-|-1|(6)|-61.6|与|-5.8|
55
713
9+—-—14×
(-15)+21×
(-15)
915
745
-(-66)×
(-27)
836
217
-(—-—+—)×
1444×
[12+(-5)3]
368
-6b+(7b-5)8b-(3b+5q)-(2q+b)
8(3t+4)+7t2-(6a-2)+(6a+10)
2(-ab-2a)-(8a-8b)9(abc-6a)-3(3a-5abc)
4(xy-6z)-(-xy+9z)-3(pq+pr)-(9pq+pr)
—x-—=—0.9x+0.1=2.3+4.2x
943
—-5x=7+—x5(x+7)+2(x+4)=17
73
—(2x-2)=—x-19x-5(18-x)=-3
35
y-2y-3
——=9-——3.5x+2.5(x+3)=5
—(2+4x)=—(4x+5)8(2x-7)=16
-1—,-3,0,-4
-—,19.5,-12,4.7
8
9—,2.2,-9,-0.72
(1)-19与-7
(2)-3.25与0.75(3)|-8|与|2|
(4)-—与-—(5)20与-|-6|(6)|-58.8|与|-5.3|
511
4+—+—13×
(-4)+26×
(-4)
918
653
-(-120)×
(-18)
564
114
964×
[8-(-1)3]
483
4y-(5y-8)9y-(4y+5s)+(5s-4y)
7(7a+5)+8a2-(9b+10)+(7b+7)
6(ab-6a)-(9a-8b)17(abc+4a)+4(3a-9abc)
7(xy+3z)-(-xy-8z)-3(pq+pr)+(9pq-pr)
—x-—=—0.7x+0.9=2.4-6.7x
—-5x=7+—x6(x+7)+5(x+1)=5
72
—(8x+1)=—x+93x-2(13+x)=-2
——=5+——1x+9.5(x-2)=30
46
—(4+2x)=—(4x+5)3(8x-8)=1
55