人教版初一数学上册计算能力专项训练112文档格式.docx
《人教版初一数学上册计算能力专项训练112文档格式.docx》由会员分享,可在线阅读,更多相关《人教版初一数学上册计算能力专项训练112文档格式.docx(12页珍藏版)》请在冰豆网上搜索。
57
9-—-—20×
(-17)-26×
(-17)
318
817
(-+-)×
-(-96)÷
12÷
(-9)
758
111
-(—+—+—)×
3926×
[4-(-3)2]
787
6、合并同类项。
-2y+(5y-2)y+(5y-9q)-(4q-5y)
-3(5m-8)-9m10-(6y-3)+(3y-7)
5(-ab+9a)-(9a+7b)15(abc+5a)+8(6a+2abc)
5(xy-3z)-(-xy-4z)-6(pq-pr)-(5pq+pr)
7、解方程。
5x1
—x-—=—0.2x+0.2=6.3+7.4x
966
81
—-5x=9-—x4(x+1)+2(x-2)=11
34
13
—(6x-2)=—x-37x+3(8-x)=-3
25
y-2y+3
——=3+——1x+3.5(x-9)=15
25
12
—(2+4x)=—(5x+4)2(6x-2)=12
53
5—,2,0,-4.8
—,3.5,3,2.5
9—,-0.6,-4,0.72
(1)-15与-2
(2)-3.75与2(3)|-7|与|-1|
(4)-—与-—(5)0与-|-3|(6)|-85.8|与|-2.2|
43
711
5+—-—20×
(-17)+16×
612
741
(---)×
-(-60)÷
8÷
(-12)
835
165
-(—-—+—)×
1128×
[1-(-5)3]
474
-5x+(6x-9)x-(6x+7s)-(6s-x)
-3(5s-8)+5s10+(9n+9)-(9n-4)
4(ab+6a)+(6a+6b)17(abc+6a)+5(7a+7abc)
2(xy-4z)-(-xy+4z)-7(pq-pr)-(8pq+pr)
7x1
—x-—=—0.8x-0.1=4.9+3.2x
923
41
—-6x=3+—x8(x+8)+7(x-6)=20
32
—(2x-2)=—x+86x+8(3+x)=-3
45
y-1y-1
——=2+——2.5x-2(x-6)=5
35
—(2-2x)=—(2x+2)2(4x+6)=1
5—,0.5,0,-4.8
—,9,10,-9.2
2
6—,4.6,7,0.48
(1)-16与-6
(2)-4.75与0.75(3)|-5.7|与|-0.1|
(4)-—与-—(5)-16与-|-9|(6)|-73.1|与|-1.6|
29
111
4+—-—20×
(-14)-6×
(-14)
615
164
(-+-)÷
-(-180)×
2×
(-24)
373
144
-(—+—-—)×
1256×
[19+(-4)2]
555
-6x-(3x+7)7x+(6x+7s)+(2s+x)
-6(7s-1)-9s7+(6m-3)+(2m+8)
4(ab+9a)-(8a+3b)3(abc+5a)+2(6a-8abc)
4(xy+8z)+(-xy+6z)-3(pq-pr)+(5pq-pr)
—x+—=—0.7x+0.4=2.3+2.3x
929
21
—-9x=1+—x8(x-8)+8(x-3)=18
74
—(3x-1)=—x+47x+5(8+x)=-3
95
y+2y+1
——=3-——5x-1.5(x-5)=30
46
—(3-2x)=—(4x-5)3(7x+6)=16
99
2—,-4.5,0,8
-—,25,-2,-7.2
4—,3,2,0.24
7
(1)-9与4
(2)-3.25与-1.75(3)|-7|与|-0.9|
(4)-—与-—(5)9与-|-1|(6)|-78.5|与|-5.4|
513
4+—+—3×
(-20)-14×
(-20)
618
(---)÷
-(-84)×
2÷
(-3)
833
319
969×
[12-(-4)3]
438
4m+(7m+2)m+(5m+3c)+(8c-9m)
-7(9a+1)-2a3-(3a+4)-(6a-1)
2(ab+2a)-(5a-7b)10(abc+8a)+7(8a-9abc)
2(xy+3z)-(-xy-8z)-8(pq-pr)-(8pq+pr)
—x+—=—0.8x-0.8=5+5.5x
349
—+5x=5-—x9(x-1)-2(x+8)=5
—(7x+6)=—x-28x-2(5+x)=-8
85
y+1y+1
——=9-——5x+9(x-4)=15
45
—(5+4x)=—(3x-3)3(4x-9)=8
77
3
4—,-2.5,0,-7.2
—,5.5,5,7
7—,4.9,-3,0.8
(1)-13与7
(2)-2.5与1(3)|-7.9|与|-2.4|
(4)-—与-—(5)1与-|-5|(6)|-20.2|与|-2.3|
67
5+—-—15×
(-14)-27×
915
861
-(-156)×
774
711
2106×
[2+(-1)2]
675
-4b+(5b+9)9b+(6b-4q)+(2q+9b)
-5(6t+7)+4t7-(3x+8)+(8x-1)
9(ab+6a)-(8a+8b)2(abc+3a)-7(7a-2abc)
7(xy-6z)-(-xy-3z)-6(pq+pr)-(5pq+pr)
—x-—=—0.2x-0.3=2.9-1.2x
946
—+4x=1-—x7(x+8)-4(x+1)=14
14
—(2x+2)=—x-87x+5(5-x)=-2
y+2y-1
——=5+——3.5x+4(x+7)=5
—(1-3x)=—(3x-1)5(8x+7)=6
89