七年级数学上册有理数计算题精练 84.docx

1、七年级数学上册有理数计算题精练 84 1 9 2 ( )( ) (54) 14 (60) 2 7 9 6 6 78 1 (3)3 ( )56 7 7 8 1 14 1 1 3 1 ( ) ( )3 ( )(5 ) 2 8 2 24 4 3 1 1 2 3 (14) 5 (14) 7 14 1 7 4 ( )( ) (102) 20 (54) 4 5 7 10 1 45 3 (2)2 ( )27 9 9 3 3 2 2 1 5 4 ( ) ( )2 ( )(2 ) 2 24 3 36 6 3 5 11 6 8 (11) 9 (11) 4 12 7 5 8 ( )( ) (24) 16 (30)

2、8 3 5 9 9 84 1 (2)3 ( )56 8 8 7 1 6 1 1 1 4 ( ) ( )2 ( )(5 ) 2 9 2 60 6 5 1 1 5 8 (20) 3 (20) 4 12 1 9 2 ( )( ) (48) 12 (18) 2 7 9 1 10 19 2 (1)2 ( )54 9 9 6 1 14 1 1 1 4 ( ) ( )2 ( )(4 ) 2 3 3 20 2 5 1 1 6 6 (10) 4 (10) 2 6 3 7 2 ( )( ) (36) 2 (30) 2 5 7 1 8 62 3 (1)2 ( )63 9 9 7 3 12 1 1 1 4 ( ) (

3、 )2 ( )(4 ) 2 27 2 20 2 5 1 1 6 6 (3) 2 (3) 2 4 7 5 6 ( )( ) (102) 18 (45) 6 3 5 1 1 79 3 (2)2 ( )16 2 2 8 1 2 1 1 5 4 ( ) ( )2 ( )(5 ) 2 5 3 40 4 5 7 17 9 3 (3) 3 (3) 6 18 7 5 6 ( )( ) (18) 2 (15) 6 3 5 8 8 27 4 (3)2 ( )27 9 9 3 2 12 1 1 3 4 ( ) ( )3 ( )(5 ) 3 10 3 40 4 5 6 1 9 4 (20) 8 (20) 5 15 1

4、 9 4 ( )( ) (36) 2 (30) 4 7 9 1 1 84 2 (3)3 ( )45 5 5 9 2 18 2 1 3 4 ( ) ( )3 ( )(2 ) 3 14 3 40 4 5 1 19 6 7 (6) 9 (6) 9 18 3 5 4 ( )( ) (96) 18 (9) 4 3 5 1 2 15 8 (1)2 ( )21 3 3 7 2 6 2 1 3 1 ( ) ( )2 ( )(2 ) 3 4 3 24 4 3 3 13 9 3 (17) 7 (17) 4 12 5 7 6 ( )( ) (42) 10 (21) 6 5 7 1 1 15 6 (1)2 ( )8

5、2 2 4 1 4 2 1 1 6 ( ) ( )3 ( )(4 ) 2 4 3 20 2 5 2 1 7 1 (2) 5 (2) 3 9 7 5 6 ( )( ) (30) 20 (36) 6 3 5 9 9 12 8 (3)3 ( )72 8 8 9 1 4 1 1 1 1 ( ) ( )2 ( )(6 ) 2 7 3 60 6 5 1 11 2 8 (16) 2 (16) 6 12 1 9 4 ( )( ) (90) 12 (60) 4 7 9 3 1 44 6 (1)3 ( )10 2 2 5 2 24 1 1 5 6 ( ) ( )3 ( )(5 ) 3 6 3 60 6 5 1 1

6、 6 9 (17) 5 (17) 3 6 1 7 2 ( )( ) (90) 6 (12) 2 5 7 1 1 47 4 (3)3 ( )10 2 2 5 2 18 1 1 1 1 ( ) ( )3 ( )(3 ) 3 10 3 24 4 3 1 5 4 5 (13) 4 (13) 2 6 3 9 4 ( )( ) (48) 10 (54) 4 7 9 3 3 56 8 (1)2 ( )12 2 2 6 1 6 1 1 1 4 ( ) ( )2 ( )(2 ) 3 2 2 40 4 5 1 23 7 9 (18) 5 (18) 8 24 1 9 8 ( )( ) (18) 14 (45) 8

7、7 9 8 8 33 8 (3)3 ( )18 9 9 2 1 14 1 1 5 2 ( ) ( )2 ( )(2 ) 2 7 2 24 4 3 6 14 2 1 (14) 3 (14) 5 15 1 7 8 ( )( ) (54) 20 (15) 8 5 7 9 9 13 5 (3)2 ( )24 8 8 3 1 14 2 1 1 2 ( ) ( )3 ( )(4 ) 2 8 3 12 2 3 5 1 5 7 (14) 9 (14) 6 18 1 7 2 ( )( ) (48) 18 (9) 2 5 7 5 1 16 1 (3)2 ( )24 6 6 4 1 8 2 1 5 1 ( ) (

8、)2 ( )(4 ) 2 9 3 40 4 5 2 1 7 5 (13) 7 (13) 3 9 1 9 6 ( )( ) (78) 18 (57) 6 7 9 10 1 35 8 (3)2 ( )18 9 9 2 1 27 1 1 3 6 ( ) ( )2 ( )(6 ) 3 7 2 20 2 5 1 8 8 6 (16) 9 (16) 3 9 7 9 6 ( )( ) (66) 2 (42) 6 7 9 1 1 32 5 (2)2 ( )20 5 5 4 3 10 2 1 5 4 ( ) ( )3 ( )(5 ) 2 21 3 36 6 3 2 8 9 9 (10) 5 (10) 3 9 5

9、 5 4 ( )( ) (6) 18 (51) 4 3 5 1 1 27 1 (3)2 ( )6 2 2 3 2 6 1 1 1 1 ( ) ( )3 ( )(3 ) 3 8 2 24 4 3 10 1 1 1 (2) 9 (2) 9 18 3 5 2 ( )( ) (30) 2 (3) 2 3 5 1 1 19 8 (3)2 ( )16 4 4 4 1 6 1 1 1 1 ( ) ( )3 ( )(3 ) 2 4 3 36 6 3 7 17 6 4 (4) 7 (4) 6 18 3 9 2 ( )( ) (6) 4 (3) 2 7 9 2 1 12 6 (2)2 ( )6 3 3 2 1 1

10、5 1 1 5 1 ( ) ( )3 ( )(2 ) 3 6 3 40 4 5 2 5 7 4 (14) 9 (14) 3 6 1 9 6 ( )( ) (12) 12 (9) 6 7 9 7 1 15 8 (2)2 ( )12 6 6 2 1 24 1 1 5 4 ( ) ( )3 ( )(6 ) 3 8 3 36 6 3 3 11 8 5 (8) 7 (8) 4 12 1 9 6 ( )( ) (12) 12 (54) 6 7 9 1 1 62 2 (1)2 ( )45 9 9 5 3 6 2 1 7 6 ( ) ( )2 ( )(5 ) 2 24 3 60 6 5 1 8 7 2 (6) 7 (6) 3 9 7 5 8 ( )( ) (42) 8 (30) 8 3 5 1 1 69 7 (3)2 ( )10 2 2 5 1 18