七年级数学上册有理数计算题精练 145.docx

1、七年级数学上册有理数计算题精练 145 2 24 2 1 1 4 ( ) ( )3 ( )(2 ) 3 6 3 24 4 3 3 7 1 4 (15) 2 (15) 2 6 7 5 6 ( )( ) (54) 20 (54) 6 3 5 1 6 64 5 (3)2 ( )49 7 7 7 2 18 1 1 5 4 ( ) ( )3 ( )(3 ) 3 16 2 60 6 5 1 1 8 4 (2) 8 (2) 6 12 7 7 6 ( )( ) (108) 16 (42) 6 5 7 1 3 16 7 (2)3 ( )12 2 2 6 4 24 2 1 5 1 ( ) ( )2 ( )(3 )

2、 3 36 3 40 4 5 1 9 1 9 (6) 5 (6) 5 10 1 5 2 ( )( ) (48) 6 (24) 2 3 5 1 9 16 5 (1)3 ( )72 8 8 9 1 6 1 1 5 1 ( ) ( )3 ( )(3 ) 3 6 3 36 6 3 4 1 9 9 (13) 8 (13) 5 15 9 7 8 ( )( ) (24) 12 (6) 8 5 7 3 1 14 2 (2)3 ( )16 2 2 8 1 6 1 1 3 2 ( ) ( )3 ( )(6 ) 2 3 2 12 2 3 1 5 9 7 (3) 4 (3) 2 4 5 7 4 ( )( ) (54)

3、 2 (12) 4 5 7 1 7 15 6 (1)2 ( )36 6 6 6 1 18 1 1 3 4 ( ) ( )2 ( )(4 ) 2 5 3 20 2 5 7 13 1 7 (11) 2 (11) 6 12 1 7 6 ( )( ) (30) 8 (57) 6 5 7 1 7 58 8 (3)2 ( )32 8 8 4 4 6 2 1 5 6 ( ) ( )3 ( )(6 ) 3 28 3 40 4 5 8 1 6 7 (9) 4 (9) 7 21 1 9 4 ( )( ) (18) 2 (12) 4 7 9 2 4 19 7 (1)3 ( )15 3 3 5 3 6 1 1 1 6

4、 ( ) ( )2 ( )(6 ) 2 6 3 60 6 5 5 7 5 4 (19) 5 (19) 4 8 7 9 8 ( )( ) (54) 12 (57) 8 7 9 1 3 15 2 (2)3 ( )8 2 2 4 1 21 1 1 3 2 ( ) ( )2 ( )(3 ) 3 6 2 24 4 3 4 8 9 4 (1) 6 (1) 3 9 1 9 4 ( )( ) (48) 6 (51) 4 7 9 1 1 64 9 (2)2 ( )10 2 2 5 1 8 1 1 1 4 ( ) ( )3 ( )(5 ) 2 3 2 24 4 3 3 1 3 4 (4) 8 (4) 4 12 1

5、 7 4 ( )( ) (102) 14 (36) 4 5 7 6 6 54 8 (2)3 ( )20 5 5 4 3 6 2 1 1 2 ( ) ( )3 ( )(5 ) 2 6 3 12 2 3 9 1 9 3 (14) 6 (14) 8 24 1 7 6 ( )( ) (42) 14 (6) 6 5 7 1 3 15 5 (1)2 ( )14 2 2 7 2 6 1 1 3 2 ( ) ( )3 ( )(5 ) 3 16 2 24 4 3 1 15 2 9 (12) 1 (12) 7 14 5 9 6 ( )( ) (30) 20 (33) 6 7 9 1 4 102 8 (1)3 (

6、)45 5 5 9 1 14 1 1 1 1 ( ) ( )3 ( )(2 ) 2 3 3 40 4 5 4 10 4 2 (20) 3 (20) 3 9 7 5 6 ( )( ) (54) 4 (27) 6 3 5 4 2 17 6 (2)2 ( )9 3 3 3 4 18 2 1 5 1 ( ) ( )2 ( )(2 ) 3 20 3 40 4 5 1 7 6 3 (14) 3 (14) 2 6 1 5 6 ( )( ) (108) 2 (12) 6 3 5 9 1 19 8 (2)3 ( )16 8 8 2 2 15 1 1 7 4 ( ) ( )3 ( )(2 ) 3 12 3 60

7、6 5 6 1 8 5 (11) 4 (11) 7 14 9 9 8 ( )( ) (18) 14 (24) 8 7 9 7 5 87 1 (2)3 ( )54 6 6 9 1 12 1 1 1 6 ( ) ( )3 ( )(6 ) 2 6 3 20 2 5 7 1 2 7 (9) 9 (9) 6 12 7 9 8 ( )( ) (36) 20 (39) 8 7 9 1 8 17 3 (2)3 ( )28 7 7 4 4 6 1 1 1 4 ( ) ( )3 ( )(5 ) 3 28 3 20 2 5 1 1 3 4 (19) 6 (19) 7 21 1 7 6 ( )( ) (48) 10

8、(42) 6 5 7 8 1 12 5 (1)2 ( )72 9 9 8 3 14 1 1 1 1 ( ) ( )2 ( )(6 ) 2 12 2 20 2 5 4 1 2 7 (7) 9 (7) 3 6 7 7 6 ( )( ) (36) 2 (27) 6 5 7 1 1 14 2 (1)2 ( )18 6 6 3 1 27 1 1 1 4 ( ) ( )2 ( )(3 ) 3 3 2 12 2 3 1 16 9 6 (18) 6 (18) 5 15 1 9 8 ( )( ) (30) 20 (33) 8 7 9 1 4 13 8 (1)2 ( )21 3 3 7 1 4 1 1 3 4 (

9、 ) ( )2 ( )(3 ) 2 3 3 12 2 3 1 11 4 8 (14) 5 (14) 6 12 1 7 4 ( )( ) (96) 8 (27) 4 5 7 5 7 86 8 (3)3 ( )42 6 6 7 1 14 1 1 1 1 ( ) ( )3 ( )(5 ) 2 5 2 12 2 3 10 1 3 3 (18) 5 (18) 9 27 5 7 4 ( )( ) (120) 4 (30) 4 5 7 1 8 17 4 (1)2 ( )18 9 9 2 4 3 1 1 1 1 ( ) ( )2 ( )(2 ) 3 24 3 12 2 3 1 7 1 7 (3) 8 (3)

10、4 8 7 9 6 ( )( ) (48) 10 (30) 6 7 9 1 1 19 7 (3)2 ( )28 7 7 4 1 16 1 1 1 1 ( ) ( )3 ( )(4 ) 2 6 3 40 4 5 1 17 2 3 (20) 6 (20) 9 18 5 9 6 ( )( ) (54) 12 (42) 6 7 9 1 4 63 5 (1)2 ( )15 3 3 5 1 15 1 1 1 4 ( ) ( )2 ( )(2 ) 3 8 3 36 6 3 1 11 8 3 (17) 5 (17) 4 12 1 7 2 ( )( ) (102) 18 (51) 2 5 7 1 1 37 6 (3)3 ( )8 2 2 4 1 2 2 1 1 1 ( ) ( )3 ( )(4 ) 2 8 3 12 2 3 5 17 1 8 (12) 2 (12) 6 18