北师版 七年级上册第二章 有理数及其运算 满分过关题 （PDF版，无答案）

( )
3 1 +0.33 0
0
-1 -3.12 17 -2012 “-”
5
0
0
1km +1km 3km -3km

       
200 -150
A 200 B 50 C 300 D 350
“600 30(ml)”
1 “30ml ” 3589ml ,573ml ,627ml
A 10 B 8 8
C 300 100 D 1.8 0.9
5C 5C 5C 2
0.05
A -5 B -10 C 5C D 10C (200.05 )
_______ _____.
4m +4m 3m ___ 1
____m A B
C D
1
       
4.5,6,0,2.4 , , 1 ,0.313 ,3.14,11 ____ ____
2
____
15, 3 ,0.15,30,12.8, 22
8 5
A 1 B 2 C 3 D 4 12 0 0
3
“ ”
5,3.5, 1 ,1 1 ,4,0,2.5
2 2
       
2 4
3 A -3 A 1 B
A 5 B 1 C -1 D -5 ____
A B -3 1 C AB C A -1 A 3
_______ B 2 B
A 6
B A B
____
2
       
( )
0 0
“ ”
a |a|
0 0
1
-1
       
1 -6 ( )
7 ( ) A 6 B 1 C 1 D 6
A 1 B 7 C 1 D 7 6 6
7 7
-|-1.5| _____
( ) 3 _____
A B  -3.14
C D 13 31
2 5 ____
a 0
-(+a)
-(-a) -3 ( )
-[+(-a)] 1 1
-[-(-a)] A  B C 3 D 33 3
-{+[-(-a)]}
3
       
( ) -{-[+(-4)]} ____
A
B
C 1
D
2 -{-[+(-5)]} ___ -(-a-b) ___ +[-(-7+b-c)] ___
3 ___ 1 a ___
7 2
-(-2) ___ b 4 ___
       
a b a 0 b 0 |b| |a| a b -a -b 3
a b c d m 2
A -b a b -a B -b b -a a | a  b |
C D  2m  3cd  2010am  1 2010bma -b b -a -a b -b a 4m
|x 2| |y 2| 0 xy ____ |x| -|y 7| xy ___
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