初一数学上册有理数和实数习题
(师宴林)
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,,,,,,,,,,讲义
讲义编号
,员编号 年 级 课时数
,员姓名 ,,,目 ,,,,
课 题 ,,数,,数,题,,
,课,,,时段
,,目的 1、,,,数,,数,,,进行梳,
2、,,,的,,进行,讲
,,内容
一、 课,的,,工,
,,,,课,,的,,,,,,,的完成,,,,,,,,懂的,,,,,,,进行讲,,,,,,,,,的
课,进行,,的,,,
,、,,,梳,
,,数的,关概念
,,,,,,,数的概念,,,,,数,,,,的概念,,,,,,,,,,,,,数,,,,,,概念,,数,,,的,,,,,,的概念,,,,,,,,,数的,,数,的概念,,,,,,的,,,,,,,
1 ,,,,,站: www.1smart.org
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, ,数的,义
, ,数的,义
,,数、,,,,数,,,数;,,数、,,数,,,数,,数,,数,,,,数,
, 认,数,
,数,,,,,,,,,数(,,,)的,,数,,,,,的,,,,,,,,的,,,,,
,数,,,,的,,数,,,的数,,,,的数大,
,数,大,,,,数,,,,,,数大,,数,
, ,,,
一,,数的,,,,,,,;一,,数的,,,,,的,,数;,的,,,,,,,,,,数的,,数的
,,,,,,
,,,数,,大,,,,,大的数大;,,,数,,大,,,,,大的数,而,,
, ,进行,,数大,,,
, ,,数的,算法则
,法法则:,号,数,,,,,,数,,的,号,,,,,,,,
,号,数,,,,,,,,大的,数的,号,,,,大的,,,,,,,的,,, ,,,,数的,,数,,,,;一,数,,,,,,,,,数,
,时,,,,的,法,,,,,法,,,,成立,
,法法则:,,一,数,,,,,,,数的,,数
,,数的,法法则:
,数,,,,号,,,,号,,,,,,,,,,,
,,数,,,,,积,,,
,数的概念:,,,,,数的,积,,1,,,,,,,数,,,数, ,时,法,,,,法,,,、,法,,,、,配,
,,数的,法法则
,数,,,,号,,,,号,,,,,,,,,,,,,,,,一,,,,,的数,,,, ,,一,数(,,,,),,,,,,,数的,数,
三、,题讲,
13,102,7,(,5),(,2),5(1) (2)16,(,2),(),(3,1) 3
2 ,,,,,站: www.1smart.org
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(3),,,的大, ,27,33
2(4) 设、,,,数,,,、,,,求+的平方根, mnmnmnm,2n,n2,17,42
,
2,,22007,, (5),,求的, ,,xyx,2,y,,0,,2,,
12b,a,1,1,a, (6),、b,,数,,,, 2b,1,b,2b,aa2
3 ,,,,,站: www.1smart.org
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1,324,1,,,,223 (7) ,,,,,,,,,5,,0.008,,5,,25,,
n533,3 (8)已,,求的,; n
5,1122m,mn,n(9)设的,数,,,,,数,,,,求的,; mn25,1
20072008a,b,c,a,1(10),、、,,数,,,求b,c的,, bac
4 ,,,,,站: www.1smart.org
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,,,,,题
1.的,,数, ,,数, , 35,6
2.,,一,,数的,,,,的平方根,,,,,,,数, , 3a,22a,13
1323.,,则 , x,y,y,,09x,121,0,27
4.,数,,,,,,,,,的,,,的数, , 35
2,,b,a,b5.已,,,数a、b,数,,,,,的,,,,,,,,,=_________,
0 a b
6.的,数的,,数,__________, 2,3
7(,,,ab,0,则,__________, |a|,3,b,2a,b
18.已,a,,数0,a,10,,,,一,a=__________,,方,的,,偶数, 1,ax,,52
4111,,3,3326,,9.计算 , . ,,12,4,3,3,,,,,
b,10.的,数,,,,,数,,,b,则 , , 5,5aa,
02311、,,,数,,,,,,,,,,,数的,数,( ) ,2,,,2,,2,,2
(A)1,, (B)2, (C)3,, (D)4,,
12、1纳米=0.000000001米,则2.5纳米,,,,数法,,,( )
,8,9,1092.5,102.5,102.5,102.5,10(A)千米(B)千米(C)千米(D)千米
5 ,,,,,站: www.1smart.org
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2,,|a,b|,a,b13、,,,,a、b,,,数的,,数,,的,,,,,,,,,,,的,,,,( )
(A)2a (B)2b (C)–2a (D)–2b
0 a b
aa,b,,2,,a,b,14、,,数、,数,,的,,,,,,,则,,的,,,( ) baa,bA.; B.; C.; D.. ,b,2a,b2a,bb
a0b
12x15、,,,,,、、、的大,,,,,( ) 0,x,1xxx
12xA. >>>; xxx
12xB. >>>; xxx
12xC. >>>; xxx
D.,,,,, .
课后,题
31、,,数,,,,数, ,3,0,0.818181......,3.14,4,,,
2、,,大,: 0, , 2310,31132
3、,数,,,,,,,,,的,,,的数, , 35
4、的,数,,,,,数,,,,则 , , b,b5,5aa,
aa,b,,2,,a,b, 5.,,数、b,数,,的,,,,,,,则,,的,,,( ) aa,b
,b,2a,b2a,bA.; B.b; C.; D..
a0b
5,1122m,mn,n6、设的,数,,,,,数,,,,求的,; mn25,1
6 ,,,,,站: www.1smart.org
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20072008a,b,c,a,17、,、、,,数,,,求的,, b,cbac
2 8、,数、,数,,的,,,,,,,则 , b,,a,b,a,b,a
b0a
12x,4,09、当时, , ,,x,4,2
10、,数,,,,2,5的,,,,的,,,___________,数,,,,-2,-5的,,,,的,,,________ ,数,,,,1,-3的,,,,的,,,___________;
,数,,,,x,-1的,,A,B,,的,,,________,,,?AB?=2, ,,x,__________,
?当代数式?x+1?+?x-2?,,,,时,,,的x的,,,,,______________, 一、选择题
1 1.(2002(,,)数,,,,-的,,,,的,,( ) 2
11 A.- B. C.-2 D.2 22
2.(2003(吉林)2003年6月1,,,,,目的三,工,,式,,,,,26,,,,,,,,,84 700 000 000
千,时,,,,,数法,该,,,( )
A.8.47×1010千,时; B.8.47×108千,时; C.8.47×109千,时; D.8.47×1011千,时
m 3.(2002(呼,浩,)m,,数,则 +m( )
A.,,,,数 B.,,,,,数
C.必,,数 D.,,,,数,,,,,数
4.(2003(济南),,a+b=0,,,,数a、b的,,一,( )(
A.,,0 B.,,,,数 C.,,,一,,0 D.,,,数
5.(2003(,,),,,数,,,,,,数的,( )
1 A.2, B.(-1)2,1 C.-1,(-1)2 D.2,-2 2
a-1 6.已, =5,则a的,,( )
A.6 B.-4 C.6或-4 D.-6或4
7 ,,,,,站: www.1smart.org
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7.(2004(江苏)2003年10月15,9时10,, ,,,,,号,,,,,,进,,,轨道,16,5时59,,,,
,,,进,,,,,,地面, ,,,,,地,,,行了14,,,行的,,约60万km,则,,,号,,,地,
平,,,,行(,,,,数法,,,,,,,三,,,数,)( )
A.4.28×,,,,, ,.4.2,×,:4,, C.4.28×,,,,, ,.4.2,×,:,,,
8.(2002(哈尔滨)已,xy,,3,2,,xy,0,则x+y的,,,( )
A.5或-5 B.1或-1 C.5或1 D.-5或-1
,、填空题:
1、(2004(,,方州)计算,,,31=____________,
2.(2003(,州),,,,,式:
1×3=12+2×1 2×4=22+2×2 3×5=32+2×3 ......
,,,,,,的,,,自然数n(n?1),,,来:_____________________ ,
3.(2003(,,江),大,,,社,,份0.4,的,,购进了a份,纸,,,份0.5,的,,售,b份,纸,,,
A的,,份0.2,的,,退,,社, 则,大,,,收,__________,,
a073 4.(2003(四川眉山),,大,:, ,,_____,1-1-61010
5.(2004(江西),,: 1-1-6,数,,的,,,,,的,,数a,则,A,,,的,,,_____________, 三、,答题:
1.(2003(,西),,,,,,,坐4,的方桌,,,多,4,,,方桌,成一行,2,方桌,成一行,坐6,,,,1-1-7,
,1-1-7
,,,,,,填,,,空,:
1 2 3 n ,成一行的桌子数 ...
4 6 ,数 ...
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