七年级数学上册有理数计算题精练 4.docx

1、七年级数学上册有理数计算题精练 4 1 7 8 1 (4) 6 (4) 4 8 1 5 2 ( )( ) (120) 20 (36) 2 3 5 6 1 109 3 (1)3 ( )45 5 5 9 4 24 2 1 7 4 ( ) ( )2 ( )(5 ) 3 12 3 36 6 3 7 1 5 2 (13) 7 (13) 6 18 1 7 8 ( )( ) (102) 12 (60) 8 5 7 6 1 13 4 (2)3 ( )35 7 7 5 1 8 2 1 1 6 ( ) ( )3 ( )(6 ) 2 4 3 20 2 5 1 1 7 6 (16) 1 (16) 3 6 1 5 6

2、( )( ) (96) 20 (30) 6 3 5 6 1 56 6 (3)2 ( )20 5 5 4 3 8 2 1 5 2 ( ) ( )2 ( )(2 ) 2 27 3 36 6 3 10 17 1 3 (5) 8 (5) 9 18 5 7 6 ( )( ) (84) 4 (27) 6 5 7 1 3 89 6 (3)2 ( )28 4 4 7 4 21 1 1 7 4 ( ) ( )2 ( )(4 ) 3 20 2 60 6 5 1 1 7 4 (6) 3 (6) 5 10 3 9 4 ( )( ) (96) 8 (51) 4 7 9 10 10 102 4 (1)2 ( )81 9

3、9 9 4 18 1 1 1 1 ( ) ( )3 ( )(4 ) 3 20 2 20 2 5 8 13 1 2 (11) 5 (11) 7 14 1 9 2 ( )( ) (6) 8 (33) 2 7 9 1 1 26 7 (2)3 ( )24 8 8 3 2 12 1 1 3 1 ( ) ( )3 ( )(6 ) 3 16 3 20 2 5 9 1 5 3 (1) 8 (1) 8 24 1 5 2 ( )( ) (12) 4 (33) 2 3 5 6 1 15 9 (1)2 ( )63 7 7 9 4 3 1 1 1 4 ( ) ( )2 ( )(4 ) 3 28 2 12 2 3 2 5

4、 1 4 (3) 1 (3) 3 6 5 9 6 ( )( ) (114) 6 (42) 6 7 9 7 7 47 3 (2)2 ( )30 6 6 5 1 3 1 1 5 4 ( ) ( )2 ( )(2 ) 3 8 3 60 6 5 9 25 2 1 (3) 8 (3) 8 24 5 9 4 ( )( ) (96) 20 (15) 4 7 9 1 7 106 5 (3)3 ( )54 6 6 9 1 18 1 1 1 2 ( ) ( )3 ( )(5 ) 2 7 3 24 4 3 3 1 1 5 (5) 8 (5) 2 6 1 9 2 ( )( ) (24) 12 (6) 2 7 9 5

5、1 15 6 (1)2 ( )28 4 4 7 1 4 2 1 3 1 ( ) ( )3 ( )(4 ) 2 4 3 24 4 3 10 1 4 8 (13) 8 (13) 9 18 9 9 8 ( )( ) (108) 2 (21) 8 7 9 1 1 68 2 (3)2 ( )10 2 2 5 2 18 1 1 1 1 ( ) ( )2 ( )(2 ) 3 4 2 12 2 3 1 13 2 8 (5) 9 (5) 7 14 1 5 6 ( )( ) (72) 2 (21) 6 3 5 1 6 14 8 (3)2 ( )35 7 7 5 4 9 1 1 1 1 ( ) ( )2 ( )(4

6、 ) 3 20 2 60 6 5 1 5 8 7 (14) 6 (14) 2 4 5 9 6 ( )( ) (60) 2 (36) 6 7 9 1 5 16 1 (1)2 ( )42 6 6 7 3 4 1 1 5 4 ( ) ( )2 ( )(4 ) 2 24 3 60 6 5 3 1 1 2 (7) 4 (7) 4 8 1 9 6 ( )( ) (72) 2 (57) 6 7 9 4 1 24 3 (3)2 ( )9 3 3 3 1 8 1 1 1 1 ( ) ( )3 ( )(5 ) 2 4 3 36 6 3 9 17 6 3 (4) 6 (4) 8 16 1 9 4 ( )( ) (9

7、6) 2 (45) 4 7 9 1 8 12 1 (1)2 ( )63 7 7 9 1 4 1 1 1 2 ( ) ( )2 ( )(4 ) 2 7 3 36 6 3 1 25 5 8 (7) 2 (7) 8 24 3 7 2 ( )( ) (48) 16 (45) 2 5 7 7 5 86 6 (2)3 ( )54 6 6 9 3 6 1 1 1 4 ( ) ( )2 ( )(6 ) 2 18 3 60 6 5 6 22 4 9 (14) 5 (14) 7 21 1 7 8 ( )( ) (72) 10 (6) 8 5 7 3 1 14 1 (3)3 ( )6 2 2 3 2 9 1 1 7

8、 4 ( ) ( )3 ( )(2 ) 3 14 2 36 6 3 1 15 6 6 (19) 4 (19) 8 16 1 7 4 ( )( ) (42) 14 (18) 4 5 7 1 5 65 3 (3)3 ( )20 4 4 5 4 3 1 1 1 6 ( ) ( )2 ( )(6 ) 3 20 3 40 4 5 4 5 3 4 (10) 1 (10) 3 6 1 7 2 ( )( ) (6) 8 (9) 2 5 7 1 1 28 2 (3)3 ( )24 8 8 3 3 12 1 1 1 1 ( ) ( )2 ( )(4 ) 2 18 3 12 2 3 10 28 9 1 (8) 7

9、(8) 9 27 1 7 8 ( )( ) (36) 10 (36) 8 5 7 4 4 17 4 (2)2 ( )15 5 5 3 1 14 1 1 5 2 ( ) ( )3 ( )(3 ) 2 7 2 36 6 3 8 1 2 7 (18) 5 (18) 9 27 1 9 2 ( )( ) (30) 18 (9) 2 7 9 7 1 35 7 (2)3 ( )16 8 8 2 2 24 1 1 5 6 ( ) ( )2 ( )(3 ) 3 10 2 40 4 5 1 7 8 5 (17) 8 (17) 3 6 5 9 4 ( )( ) (72) 2 (12) 4 7 9 1 1 56 9

10、(2)2 ( )18 3 3 6 2 24 1 1 7 1 ( ) ( )2 ( )(6 ) 3 12 3 60 6 5 4 1 5 5 (17) 8 (17) 3 9 1 7 2 ( )( ) (108) 2 (60) 2 5 7 1 4 58 5 (3)2 ( )18 3 3 6 3 2 1 1 3 1 ( ) ( )3 ( )(6 ) 2 24 3 40 4 5 1 1 5 3 (15) 4 (15) 4 8 1 9 6 ( )( ) (24) 4 (27) 6 7 9 1 1 14 6 (2)2 ( )18 2 2 9 1 14 2 1 1 1 ( ) ( )2 ( )(5 ) 2 5 3 24 4 3 5 9 6 6 (10) 5 (10) 4 8 1 9 6 ( )( ) (96) 4 (6) 6 7 9 5 3