七年级数学上册有理数计算题精练 47.docx

1、七年级数学上册有理数计算题精练 47 1 7 8 5 (10) 8 (10) 3 6 1 5 8 ( )( ) (30) 18 (30) 8 3 5 1 8 85 2 (3)3 ( )63 9 9 7 3 6 1 1 1 1 ( ) ( )3 ( )(3 ) 2 15 3 40 4 5 8 13 6 3 (17) 4 (17) 7 14 5 9 4 ( )( ) (24) 8 (36) 4 7 9 1 7 67 4 (3)3 ( )42 6 6 7 1 14 2 1 5 2 ( ) ( )2 ( )(5 ) 2 6 3 24 4 3 1 1 7 8 (18) 4 (18) 2 4 1 5 8

2、( )( ) (72) 14 (21) 8 3 5 3 1 35 4 (1)3 ( )8 2 2 4 1 14 1 1 1 1 ( ) ( )3 ( )(3 ) 2 2 2 20 2 5 1 17 3 3 (12) 9 (12) 6 18 3 9 2 ( )( ) (48) 10 (21) 2 7 9 1 1 14 6 (3)2 ( )4 2 2 2 1 16 1 1 1 1 ( ) ( )3 ( )(3 ) 2 6 2 12 2 3 4 1 6 7 (20) 3 (20) 5 15 7 5 8 ( )( ) (114) 2 (9) 8 3 5 1 1 76 2 (1)2 ( )54 9 9

3、6 1 18 1 1 3 2 ( ) ( )2 ( )(2 ) 3 3 2 12 2 3 1 5 4 9 (4) 4 (4) 2 6 1 9 2 ( )( ) (102) 14 (48) 2 7 9 9 7 63 6 (3)2 ( )40 8 8 5 1 24 1 1 5 1 ( ) ( )2 ( )(6 ) 3 3 3 36 6 3 4 9 5 8 (14) 7 (14) 5 10 1 9 6 ( )( ) (96) 18 (42) 6 7 9 1 4 17 2 (1)2 ( )15 5 5 3 1 4 2 1 1 2 ( ) ( )3 ( )(5 ) 2 2 3 12 2 3 1 1 9

4、8 (10) 8 (10) 5 10 5 7 6 ( )( ) (24) 6 (33) 6 5 7 1 5 17 8 (3)2 ( )24 6 6 4 1 16 1 1 1 2 ( ) ( )3 ( )(6 ) 2 6 2 12 2 3 8 15 7 8 (5) 4 (5) 7 14 7 9 8 ( )( ) (96) 6 (9) 8 7 9 6 4 29 4 (2)3 ( )15 5 5 3 4 9 2 1 1 2 ( ) ( )2 ( )(6 ) 3 20 3 12 2 3 6 14 6 1 (7) 9 (7) 5 15 3 5 4 ( )( ) (102) 18 (21) 4 3 5 1

5、 1 83 5 (3)2 ( )49 7 7 7 3 10 1 1 1 4 ( ) ( )3 ( )(5 ) 2 12 2 40 4 5 8 1 6 9 (7) 9 (7) 7 21 5 9 6 ( )( ) (66) 12 (51) 6 7 9 1 1 45 9 (3)2 ( )10 2 2 5 1 4 2 1 1 4 ( ) ( )2 ( )(6 ) 2 4 3 20 2 5 4 9 6 2 (7) 9 (7) 5 10 1 7 8 ( )( ) (90) 12 (45) 8 5 7 1 3 53 4 (2)3 ( )12 2 2 6 4 9 1 1 1 2 ( ) ( )2 ( )(5

6、) 3 16 2 12 2 3 1 1 8 4 (20) 9 (20) 2 4 7 9 6 ( )( ) (96) 2 (57) 6 7 9 8 8 42 7 (2)2 ( )45 9 9 5 3 4 1 1 1 1 ( ) ( )3 ( )(5 ) 2 21 2 12 2 3 3 13 7 8 (3) 5 (3) 4 12 1 7 8 ( )( ) (36) 10 (30) 8 5 7 5 1 13 6 (3)3 ( )20 4 4 5 1 10 1 1 3 4 ( ) ( )2 ( )(4 ) 2 7 2 20 2 5 7 19 6 3 (1) 9 (1) 6 18 7 5 6 ( )(

7、) (36) 4 (42) 6 3 5 1 1 27 7 (3)3 ( )24 8 8 3 1 16 1 1 1 1 ( ) ( )2 ( )(3 ) 2 6 3 20 2 5 3 1 5 4 (18) 6 (18) 2 4 9 9 8 ( )( ) (24) 4 (48) 8 7 9 1 6 63 4 (3)3 ( )35 7 7 5 1 18 1 1 5 4 ( ) ( )3 ( )(3 ) 2 6 3 36 6 3 10 1 7 6 (15) 8 (15) 9 27 1 5 4 ( )( ) (30) 18 (48) 4 3 5 1 5 52 5 (3)3 ( )24 6 6 4 4 2

8、7 1 1 3 1 ( ) ( )2 ( )(6 ) 3 28 2 12 2 3 3 1 8 7 (16) 3 (16) 2 6 1 7 8 ( )( ) (30) 18 (21) 8 5 7 7 7 55 8 (3)2 ( )48 8 8 6 1 18 1 1 1 6 ( ) ( )2 ( )(4 ) 2 8 3 60 6 5 1 17 9 3 (4) 9 (4) 8 16 1 9 2 ( )( ) (60) 20 (6) 2 7 9 1 10 69 5 (2)3 ( )45 9 9 5 2 3 1 1 1 2 ( ) ( )2 ( )(4 ) 3 10 3 12 2 3 1 19 9 2

9、(9) 2 (9) 9 18 1 5 6 ( )( ) (54) 18 (12) 6 3 5 1 3 87 4 (1)3 ( )14 2 2 7 1 6 1 1 1 1 ( ) ( )3 ( )(6 ) 3 4 3 12 2 3 7 1 3 4 (6) 8 (6) 8 24 1 7 2 ( )( ) (54) 6 (12) 2 5 7 3 5 42 3 (2)2 ( )20 4 4 5 1 6 1 1 1 1 ( ) ( )3 ( )(6 ) 2 9 2 24 4 3 5 11 7 7 (19) 5 (19) 4 12 1 5 8 ( )( ) (48) 2 (18) 8 3 5 4 1 14

10、 2 (3)3 ( )6 3 3 2 1 18 1 1 3 4 ( ) ( )2 ( )(2 ) 2 6 3 24 4 3 6 22 3 7 (1) 4 (1) 7 21 9 5 8 ( )( ) (54) 14 (48) 8 3 5 10 1 12 4 (3)2 ( )36 9 9 4 4 9 2 1 5 1 ( ) ( )2 ( )(6 ) 3 12 3 40 4 5 1 7 7 2 (15) 7 (15) 2 6 1 7 4 ( )( ) (96) 2 (45) 4 5 7 1 10 78 9 (3)3 ( )54 9 9 6 1 6 1 1 3 1 ( ) ( )3 ( )(2 ) 2 9 2 12 2 3 5 19 9 3 (2) 8 (2) 6 18 1 7 8 ( )( ) (102) 20 (12) 8 5 7