七年级数学上册有理数计算题专项训练 47.docx

1、七年级数学上册有理数计算题专项训练 47 1 1 89 7 (1)2 ( )18 2 2 9 4 9 1 1 1 4 ( ) ( )3 ( )(5 ) 3 12 2 60 6 5 1 15 8 1 (20) 2 (20) 8 16 1 4 8 ( )( ) (24) 14 (30) 4 5 4 8 8 67 7 (1)3 ( )35 7 7 5 1 2 1 1 3 6 ( ) ( )2 ( )(2 ) 2 4 3 40 4 5 6 1 1 8 (12) 5 (12) 5 15 5 6 12 ( )( ) (72) 2 (18) 6 7 6 1 8 54 5 (1)3 ( )54 9 9 6 1

2、 8 2 1 7 4 ( ) ( )2 ( )(2 ) 2 6 3 60 6 5 1 1 9 4 (10) 9 (10) 6 18 1 4 4 ( )( ) (60) 6 (15) 2 5 4 4 1 18 8 (2)2 ( )10 5 5 2 1 16 1 1 1 2 ( ) ( )3 ( )(2 ) 2 4 3 12 2 3 3 5 5 2 (19) 3 (19) 2 6 1 4 8 ( )( ) (60) 16 (21) 4 5 4 1 4 12 9 (1)3 ( )27 3 3 9 2 24 1 1 7 2 ( ) ( )2 ( )(6 ) 3 12 3 36 6 3 6 1 5 9

3、(3) 1 (3) 5 15 5 2 8 ( )( ) (36) 10 (60) 4 3 2 8 6 87 3 (1)3 ( )63 7 7 9 1 6 1 1 5 6 ( ) ( )3 ( )(6 ) 2 5 2 40 4 5 8 17 8 2 (2) 4 (2) 9 18 7 4 12 ( )( ) (18) 6 (45) 6 5 4 1 1 68 8 (1)3 ( )28 4 4 7 1 27 3 1 1 4 ( ) ( )2 ( )(4 ) 3 4 2 60 6 5 6 1 8 3 (1) 9 (1) 5 15 7 6 16 ( )( ) (12) 10 (27) 8 7 6 5 5

4、15 5 (1)2 ( )42 6 6 7 3 10 1 1 7 2 ( ) ( )2 ( )(2 ) 2 24 2 36 6 3 4 5 2 2 (16) 9 (16) 3 6 5 2 12 ( )( ) (72) 20 (51) 6 3 2 8 6 13 8 (3)2 ( )49 7 7 7 1 21 1 1 5 1 ( ) ( )3 ( )(5 ) 3 2 2 40 4 5 6 13 6 2 (20) 9 (20) 7 14 1 4 4 ( )( ) (108) 20 (48) 2 5 4 1 1 54 3 (1)2 ( )12 3 3 4 1 14 1 1 5 1 ( ) ( )3 (

5、 )(5 ) 2 4 2 40 4 5 1 1 7 6 (9) 3 (9) 3 6 5 2 8 ( )( ) (120) 8 (54) 4 3 2 1 4 98 9 (2)2 ( )24 3 3 8 3 12 3 1 1 2 ( ) ( )2 ( )(4 ) 2 24 2 24 4 3 5 19 2 8 (7) 5 (7) 6 18 3 4 8 ( )( ) (18) 20 (33) 4 5 4 1 6 78 3 (2)3 ( )56 7 7 8 3 4 1 1 1 1 ( ) ( )3 ( )(5 ) 2 12 3 24 4 3 1 11 1 9 (14) 7 (14) 5 10 1 6 1

6、6 ( )( ) (78) 10 (6) 8 7 6 7 7 19 1 (1)2 ( )36 6 6 6 4 3 1 1 1 4 ( ) ( )2 ( )(2 ) 3 28 2 36 6 3 5 13 7 6 (14) 4 (14) 4 12 5 2 8 ( )( ) (90) 14 (3) 4 3 2 8 8 16 6 (2)2 ( )45 9 9 5 1 18 1 1 3 4 ( ) ( )2 ( )(2 ) 2 6 2 40 4 5 3 1 4 8 (13) 8 (13) 4 12 5 6 12 ( )( ) (66) 8 (33) 6 7 6 3 1 44 4 (1)3 ( )6 2

7、2 3 1 8 1 1 1 6 ( ) ( )2 ( )(2 ) 2 7 2 40 4 5 1 28 3 8 (20) 9 (20) 9 27 1 2 12 ( )( ) (54) 12 (12) 6 3 2 1 6 86 6 (3)2 ( )35 5 5 7 1 9 1 1 1 4 ( ) ( )3 ( )(5 ) 3 6 2 12 2 3 3 5 5 7 (18) 8 (18) 2 6 3 4 8 ( )( ) (84) 8 (9) 4 5 4 1 1 93 9 (1)3 ( )64 8 8 8 1 8 3 1 1 6 ( ) ( )2 ( )(3 ) 2 6 2 20 2 5 8 1 8

8、 1 (6) 6 (6) 9 18 3 2 8 ( )( ) (84) 6 (6) 4 3 2 5 5 14 8 (1)2 ( )18 6 6 3 3 16 1 1 7 1 ( ) ( )3 ( )(5 ) 2 27 3 36 6 3 6 13 3 5 (16) 4 (16) 7 14 1 2 12 ( )( ) (30) 6 (27) 6 3 2 1 1 17 9 (1)3 ( )16 2 2 8 3 18 1 1 5 2 ( ) ( )2 ( )(3 ) 2 6 3 36 6 3 1 1 5 6 (1) 4 (1) 9 27 7 2 12 ( )( ) (84) 18 (48) 6 3 2

9、 7 1 83 5 (1)2 ( )42 6 6 7 4 18 2 1 1 4 ( ) ( )2 ( )(3 ) 3 24 3 20 2 5 1 1 7 1 (10) 4 (10) 9 18 3 2 4 ( )( ) (42) 12 (57) 2 3 2 1 1 14 1 (2)2 ( )81 9 9 9 3 10 1 1 1 1 ( ) ( )2 ( )(5 ) 2 12 2 20 2 5 3 1 3 1 (4) 3 (4) 2 4 3 6 8 ( )( ) (48) 14 (9) 4 7 6 7 9 49 4 (3)3 ( )24 8 8 3 1 16 1 1 1 1 ( ) ( )3 (

10、 )(2 ) 2 3 2 12 2 3 1 1 4 5 (5) 2 (5) 7 14 5 2 12 ( )( ) (114) 18 (30) 6 3 2 1 4 46 1 (2)3 ( )15 3 3 5 3 6 1 1 1 1 ( ) ( )3 ( )(4 ) 2 24 3 60 6 5 5 9 6 5 (17) 7 (17) 4 8 5 6 12 ( )( ) (24) 4 (30) 6 7 6 1 3 79 1 (1)3 ( )32 4 4 8 1 12 1 1 1 6 ( ) ( )2 ( )(2 ) 2 9 2 40 4 5 5 7 4 1 (12) 1 (12) 4 8 1 6 8 ( )( ) (12) 6 (54) 4 7 6 8 6 84 4 (2)3 ( )49 7 7 7 3 18 3 1 5 2 ( ) ( )3 ( )(4 ) 2 24 2 2