北师大版七年级数学上册有理数计算题精选 107.docx

1、北师大版七年级数学上册有理数计算题精选 107 1 8 1 1 5 6 ( ) ( )3 ( )(3 ) 2 5 2 60 6 5 1 1 5 8 (16) 3 (16) 5 10 9 7 8 ( )( ) (42) 4 (45) 8 5 7 1 1 18 6 (2)2 ( )16 8 8 2 1 15 1 1 1 1 ( ) ( )3 ( )(6 ) 3 8 2 12 2 3 1 17 9 6 (12) 2 (12) 9 18 1 9 2 ( )( ) (54) 14 (30) 2 7 9 1 1 88 5 (1)2 ( )14 2 2 7 1 15 1 1 1 1 ( ) ( )2 ( )

2、(4 ) 3 4 2 20 2 5 8 1 4 9 (5) 2 (5) 7 14 7 5 6 ( )( ) (36) 8 (27) 6 3 5 4 4 46 3 (3)3 ( )15 3 3 5 1 3 1 1 1 1 ( ) ( )3 ( )(2 ) 3 7 3 12 2 3 1 1 7 7 (10) 5 (10) 3 9 1 9 8 ( )( ) (12) 6 (24) 8 7 9 5 7 48 1 (1)3 ( )18 6 6 3 1 12 1 1 1 6 ( ) ( )2 ( )(6 ) 2 9 2 60 6 5 1 9 2 5 (19) 2 (19) 5 10 1 9 2 ( )(

3、) (108) 4 (24) 2 7 9 7 5 14 1 (1)3 ( )42 6 6 7 4 12 2 1 1 1 ( ) ( )2 ( )(2 ) 3 24 3 20 2 5 3 1 9 6 (3) 9 (3) 2 4 7 7 8 ( )( ) (6) 4 (48) 8 5 7 2 2 72 8 (1)3 ( )18 3 3 6 1 2 1 1 1 2 ( ) ( )3 ( )(4 ) 2 5 2 36 6 3 1 1 4 7 (11) 3 (11) 8 16 3 9 2 ( )( ) (54) 2 (15) 2 7 9 8 1 15 2 (3)2 ( )14 7 7 2 3 16 2

4、1 1 1 ( ) ( )2 ( )(5 ) 2 12 3 12 2 3 2 1 6 7 (16) 4 (16) 3 9 3 5 2 ( )( ) (6) 16 (54) 2 3 5 4 4 54 7 (1)3 ( )20 5 5 4 1 4 1 1 5 1 ( ) ( )2 ( )(4 ) 2 6 2 60 6 5 9 17 9 1 (7) 3 (7) 8 16 7 7 6 ( )( ) (12) 4 (60) 6 5 7 1 1 46 5 (1)3 ( )10 2 2 5 4 3 1 1 3 1 ( ) ( )2 ( )(3 ) 3 8 2 24 4 3 1 8 7 9 (11) 6 (1

5、1) 3 9 1 9 2 ( )( ) (66) 16 (57) 2 7 9 10 8 18 1 (3)2 ( )72 9 9 8 3 2 1 1 1 2 ( ) ( )3 ( )(3 ) 2 12 2 12 2 3 7 23 6 9 (6) 6 (6) 8 24 1 9 8 ( )( ) (36) 12 (18) 8 7 9 1 1 27 6 (1)2 ( )24 8 8 3 2 24 2 1 5 6 ( ) ( )3 ( )(2 ) 3 4 3 40 4 5 7 1 8 4 (17) 8 (17) 8 16 5 9 4 ( )( ) (6) 20 (60) 4 7 9 10 8 65 9

6、(3)3 ( )45 9 9 5 1 9 2 1 1 1 ( ) ( )3 ( )(3 ) 3 5 3 12 2 3 7 1 3 5 (10) 5 (10) 6 18 5 9 4 ( )( ) (30) 18 (57) 4 7 9 1 3 94 8 (2)3 ( )16 2 2 8 1 16 2 1 1 4 ( ) ( )2 ( )(6 ) 2 6 3 20 2 5 1 5 5 3 (7) 2 (7) 2 4 1 7 2 ( )( ) (102) 18 (9) 2 5 7 1 3 56 8 (3)2 ( )16 4 4 4 1 10 1 1 1 2 ( ) ( )3 ( )(2 ) 2 2 3

7、 12 2 3 5 19 4 8 (3) 3 (3) 6 18 1 9 6 ( )( ) (6) 2 (60) 6 7 9 1 2 55 5 (2)2 ( )18 3 3 6 1 18 2 1 3 2 ( ) ( )3 ( )(5 ) 3 8 3 24 4 3 4 11 6 6 (15) 9 (15) 5 10 1 7 2 ( )( ) (78) 6 (42) 2 5 7 6 1 18 5 (1)3 ( )35 5 5 7 1 14 1 1 1 6 ( ) ( )3 ( )(2 ) 2 5 2 60 6 5 4 1 4 1 (12) 4 (12) 3 6 7 7 8 ( )( ) (24) 1

8、6 (3) 8 5 7 1 1 88 3 (3)2 ( )14 2 2 7 4 21 2 1 5 1 ( ) ( )2 ( )(3 ) 3 32 3 24 4 3 10 28 7 3 (11) 2 (11) 9 27 3 9 4 ( )( ) (72) 12 (51) 4 7 9 1 7 27 6 (3)2 ( )24 8 8 3 4 9 1 1 1 4 ( ) ( )3 ( )(2 ) 3 12 2 24 4 3 4 1 7 1 (15) 3 (15) 5 15 7 5 6 ( )( ) (108) 6 (24) 6 3 5 1 8 62 8 (3)2 ( )35 7 7 5 1 24 2

9、1 1 4 ( ) ( )3 ( )(4 ) 3 2 3 20 2 5 4 11 2 9 (8) 9 (8) 5 10 1 5 2 ( )( ) (42) 12 (30) 2 3 5 1 10 16 9 (1)3 ( )45 9 9 5 2 6 1 1 5 1 ( ) ( )3 ( )(4 ) 3 8 3 40 4 5 7 17 1 8 (3) 4 (3) 8 16 1 9 2 ( )( ) (12) 8 (36) 2 7 9 9 1 88 8 (3)2 ( )72 8 8 9 1 3 1 1 7 6 ( ) ( )3 ( )(6 ) 3 7 2 60 6 5 9 23 3 1 (20) 6

10、(20) 8 24 1 5 2 ( )( ) (102) 16 (33) 2 3 5 1 1 38 6 (1)2 ( )8 2 2 4 3 2 2 1 7 4 ( ) ( )3 ( )(4 ) 2 18 3 60 6 5 1 25 2 9 (3) 4 (3) 8 24 1 9 8 ( )( ) (84) 20 (60) 8 7 9 1 7 37 3 (1)2 ( )24 6 6 4 3 12 1 1 5 1 ( ) ( )2 ( )(3 ) 2 27 2 24 4 3 4 1 3 2 (14) 8 (14) 3 6 1 5 8 ( )( ) (6) 12 (57) 8 3 5 1 1 16 2 (1)3 ( )64 8 8 8 2 27 2 1 5 4 ( ) ( )3 ( )(3 ) 3 16 3 60 6 5 8 20 6 4 (3) 5 (3) 7 21