初一数学上册计算题天天练精品56Word格式.docx
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71
2+—+—10×
(-16)-14×
(-16)
315
189
(---)÷
-(-78)÷
2÷
(-12)
778
135
-(—+—+—)×
729×
[6-(-2)3]
346
6、合并同类项。
3y+(6y+6)3y+(4y-2c)-(4c-y)
-4(5n+10)-9n5-(9y+4)-(3y-2)
3(-ab-9a)-(8a+6b)16(abc-7a)-7(6a-3abc)
7(xy+3z)+(-xy-6z)-3(pq+pr)+(7pq-pr)
7、解方程。
7x1
—x+—=—0.3x+0.5=0.1-5.2x
966
81
—-6x=7+—x9(x+5)+8(x-4)=7
92
12
—(4x-4)=—x+79x-6(4-x)=-3
55
y+1y+3
——=1+——4.5x+8.5(x+3)=45
26
—(5+3x)=—(3x+5)4(8x-3)=2
4
-1—,-5,0,7.2
-—,-10,0,7.4
-4—,0.7,10,-0.08
7
(1)-15与-1
(2)-4.5与-1(3)|-6.7|与|-2.4|
(4)-—与-—(5)-10与-|-8|(6)|-69.1|与|-7.4|
65
77
8-—+—14×
(-1)-3×
(-1)
615
755
-(-84)÷
10×
(-21)
644
448
-(—-—+—)×
1754×
[7-(-3)2]
557
6y+(7y+7)7y-(7y-4c)-(8c+y)
8(7a+2)+7a10-(6b-7)-(4b+4)
3(-ab-9a)+(9a+5b)10(abc-9a)-7(6a-6abc)
2(xy+4z)-(-xy-3z)-8(pq-pr)+(6pq-pr)
5x1
—x+—=—0.2x+0.8=3.4+9.5x
686
—+7x=9-—x4(x+4)+4(x+4)=19
33
14
—(5x-7)=—x+44x-4(12-x)=-1
65
y-1y-2
——=9+——1.5x-8(x-1)=50
—(4-2x)=—(2x+2)5(4x-4)=10
39
-2—,0.5,0,7.2
—,24,-18,4
1—,0.05,-5,0.16
(1)-14与-4
(2)-3与1(3)|-4.7|与|-3.7|
(4)-—与-—(5)-16与-|-8|(6)|-59.2|与|-0.9|
87
51
2-—-—24×
(-1)+15×
618
152
(-+-)×
-(-114)×
4×
(-27)
763
257
1442×
[8+(-5)3]
368
-7m+(2m+6)m+(8m+2z)+(6z+6m)
6(5a-3)+4a6+(6y-5)+(5y+1)
6(ab+4a)+(7a-6b)9(abc+5a)-4(8a+4abc)
2(xy+2z)-(-xy-6z)-3(pq+pr)+(7pq-pr)
—x-—=—0.6x+0.6=3.7+5.4x
963
—-3x=4+—x8(x+1)+7(x+3)=3
77
—(5x-1)=—x-87x-8(14-x)=-7
35
y+2y+1
——=4-——1x+7(x-5)=45
45
—(5+2x)=—(2x+3)9(8x-2)=14
37
1—,3,0,4.8
-—,-23.5,-13,-7.2
3—,0.4,-5,-0.48
(1)-17与9
(2)-4.5与-0.25(3)|-9.6|与|-2.3|
(4)-—与-—(5)8与-|-6|(6)|-79.5|与|-6.1|
53
2-—-—14×
(-6)-9×
(-6)
318
116
(---)×
8×
(-18)
535
581
1689×
[17-(-5)2]
476
-6y+(9y+8)6y-(8y-2c)-(2c-2y)
-2(7a-9)+9a6+(7x-10)+(4x-4)
3(-ab-8a)+(7a-7b)16(abc+5a)-4(4a-9abc)
2(xy-5z)+(-xy+2z)-7(pq+pr)-(8pq-pr)
—x+—=—0.6x+0.4=3.3+5.9x
643
—+5x=3+—x7(x+4)+5(x+6)=20
72
—(4x-2)=—x-79x-6(1+x)=-9
75
y-3y-2
——=3+——4.5x+8.5(x-5)=30
—(4-2x)=—(3x+3)2(2x+6)=2
99
-1—,0.5,0,-2.4
-—,20.5,-2,-1.9
-4—,-3.9,-1,0.4
(1)-16与-4
(2)-4与2.5(3)|-7.1|与|1.9|
(4)-—与-—(5)15与-|-2|(6)|-24.2|与|-8.7|
513
8-—+—4×
(-13)+22×
(-13)
912
614
-(-84)×
6×
545
741
-(—-—-—)×
1201×
[10+(-3)3]
853
-8n-(2n+4)n+(8n+4p)+(8p-8n)
-3(4s+9)-8s10-(5n-3)-(2n+8)
7(