七年级数学上册有理数计算题精练 140.docx

1、七年级数学上册有理数计算题精练 140 1 20 3 1 (2) 6 (2) 7 21 1 9 2 ( )( ) (102) 12 (39) 2 7 9 10 8 105 1 (1)3 ( )81 9 9 9 4 24 2 1 1 4 ( ) ( )3 ( )(6 ) 3 12 3 20 2 5 1 1 6 4 (4) 4 (4) 6 12 5 7 6 ( )( ) (102) 10 (6) 6 5 7 10 10 13 4 (1)2 ( )18 9 9 2 4 6 1 1 1 1 ( ) ( )2 ( )(6 ) 3 24 2 12 2 3 4 1 6 6 (18) 5 (18) 5 15

2、1 7 8 ( )( ) (114) 4 (45) 8 5 7 1 8 14 8 (1)3 ( )72 9 9 8 2 12 2 1 1 1 ( ) ( )3 ( )(3 ) 3 8 3 20 2 5 4 7 6 9 (4) 7 (4) 3 6 3 9 4 ( )( ) (6) 8 (30) 4 7 9 4 1 66 5 (2)2 ( )35 5 5 7 1 6 1 1 3 2 ( ) ( )3 ( )(4 ) 3 2 2 12 2 3 8 15 3 4 (20) 8 (20) 7 14 5 7 6 ( )( ) (12) 10 (6) 6 5 7 5 7 28 2 (2)2 ( )18 6

3、6 3 1 27 1 1 7 4 ( ) ( )3 ( )(2 ) 3 9 2 60 6 5 7 19 6 3 (18) 5 (18) 6 18 1 5 4 ( )( ) (60) 10 (30) 4 3 5 5 7 39 8 (1)2 ( )12 6 6 2 1 9 1 1 3 1 ( ) ( )2 ( )(3 ) 3 7 3 20 2 5 7 17 3 5 (19) 6 (19) 6 18 1 9 4 ( )( ) (42) 6 (24) 4 7 9 1 1 34 1 (2)2 ( )36 9 9 4 1 21 1 1 7 4 ( ) ( )2 ( )(4 ) 3 8 3 60 6 5 9

4、 1 8 3 (13) 8 (13) 8 16 9 7 8 ( )( ) (42) 14 (21) 8 5 7 1 1 17 5 (2)3 ( )18 2 2 9 1 16 1 1 1 1 ( ) ( )2 ( )(5 ) 2 8 2 20 2 5 1 5 1 1 (15) 5 (15) 2 4 9 7 8 ( )( ) (84) 20 (3) 8 5 7 4 1 18 7 (3)3 ( )27 3 3 9 2 24 1 1 5 1 ( ) ( )3 ( )(2 ) 3 4 3 40 4 5 3 1 9 1 (16) 4 (16) 4 8 5 5 4 ( )( ) (60) 12 (24) 4

5、 3 5 3 3 69 2 (2)3 ( )10 2 2 5 1 10 1 1 1 4 ( ) ( )3 ( )(4 ) 2 5 2 36 6 3 10 1 4 8 (17) 6 (17) 9 27 1 7 2 ( )( ) (6) 20 (21) 2 5 7 1 3 38 7 (3)2 ( )16 4 4 4 4 21 1 1 1 1 ( ) ( )3 ( )(2 ) 3 24 2 20 2 5 1 1 8 2 (13) 5 (13) 6 12 1 7 4 ( )( ) (24) 2 (24) 4 5 7 1 7 37 8 (1)3 ( )24 6 6 4 4 3 1 1 7 4 ( ) (

6、 )3 ( )(4 ) 3 28 2 60 6 5 3 7 4 2 (8) 8 (8) 2 6 1 7 4 ( )( ) (6) 10 (33) 4 5 7 1 10 17 8 (1)3 ( )63 9 9 7 4 27 2 1 1 2 ( ) ( )3 ( )(6 ) 3 20 3 12 2 3 5 13 2 3 (13) 8 (13) 4 12 3 5 4 ( )( ) (120) 8 (30) 4 3 5 6 6 15 2 (3)3 ( )14 7 7 2 1 12 1 1 3 2 ( ) ( )2 ( )(6 ) 2 9 2 24 4 3 5 13 1 9 (3) 7 (3) 6 12

7、 7 7 8 ( )( ) (66) 8 (54) 8 5 7 1 1 67 4 (2)3 ( )30 6 6 5 3 4 2 1 5 1 ( ) ( )3 ( )(3 ) 2 18 3 24 4 3 6 1 2 7 (14) 2 (14) 5 15 3 7 4 ( )( ) (24) 6 (30) 4 5 7 3 3 16 5 (2)3 ( )12 2 2 6 1 14 2 1 1 1 ( ) ( )2 ( )(4 ) 2 3 3 12 2 3 8 1 1 2 (2) 4 (2) 7 21 9 9 8 ( )( ) (48) 2 (54) 8 7 9 1 1 87 5 (2)3 ( )21

8、3 3 7 3 10 2 1 5 2 ( ) ( )2 ( )(4 ) 2 18 3 36 6 3 6 20 1 9 (6) 9 (6) 7 21 1 9 2 ( )( ) (42) 20 (9) 2 7 9 1 5 16 4 (3)2 ( )20 4 4 5 1 10 1 1 5 2 ( ) ( )2 ( )(3 ) 2 4 2 36 6 3 9 17 7 1 (1) 6 (1) 8 16 7 9 6 ( )( ) (90) 8 (3) 6 7 9 6 6 108 3 (3)2 ( )63 7 7 9 1 3 1 1 7 2 ( ) ( )3 ( )(5 ) 3 6 2 36 6 3 4 5

9、 4 5 (12) 3 (12) 3 6 7 9 8 ( )( ) (42) 4 (36) 8 7 9 1 1 19 5 (3)3 ( )24 8 8 3 2 3 1 1 1 1 ( ) ( )3 ( )(3 ) 3 12 2 36 6 3 1 17 1 4 (4) 2 (4) 8 16 1 9 6 ( )( ) (42) 2 (42) 6 7 9 1 4 14 1 (1)3 ( )21 3 3 7 1 27 1 1 1 1 ( ) ( )3 ( )(5 ) 3 8 2 36 6 3 6 9 5 5 (14) 5 (14) 5 10 1 7 2 ( )( ) (96) 16 (15) 2 5

10、7 4 4 108 3 (1)3 ( )45 5 5 9 1 8 1 1 1 4 ( ) ( )2 ( )(3 ) 2 6 2 24 4 3 6 20 6 2 (8) 6 (8) 7 21 3 7 4 ( )( ) (48) 16 (48) 4 5 7 1 1 43 2 (1)3 ( )12 4 4 3 1 8 2 1 1 1 ( ) ( )2 ( )(5 ) 2 9 3 40 4 5 10 1 8 6 (20) 8 (20) 9 27 1 7 6 ( )( ) (78) 8 (9) 6 5 7 1 2 18 8 (3)3 ( )15 3 3 5 4 12 1 1 5 4 ( ) ( )2 ( )(2 ) 3 32 3 24 4 3 3 7 5 3 (15) 9 (15) 2 6 1 7 4 ( )( ) (54) 14 (24) 4 5 7