七年级数学上册有理数计算题精练 79.docx

1、七年级数学上册有理数计算题精练 79 3 3 7 1 (4) 8 (4) 2 4 3 7 4 ( )( ) (18) 6 (9) 4 5 7 5 7 74 4 (1)2 ( )48 6 6 8 3 4 1 1 1 4 ( ) ( )2 ( )(5 ) 2 12 2 60 6 5 3 9 9 9 (8) 7 (8) 4 8 1 7 4 ( )( ) (90) 14 (36) 4 5 7 1 10 19 7 (2)2 ( )63 9 9 7 1 12 2 1 1 1 ( ) ( )3 ( )(3 ) 2 7 3 12 2 3 3 1 8 5 (2) 4 (2) 4 12 1 7 8 ( )( )

2、(66) 20 (45) 8 5 7 1 3 12 1 (2)3 ( )12 4 4 3 4 15 2 1 1 4 ( ) ( )2 ( )(4 ) 3 32 3 20 2 5 1 11 4 1 (8) 7 (8) 6 12 1 5 6 ( )( ) (36) 14 (12) 6 3 5 7 1 25 2 (3)3 ( )24 8 8 3 3 10 1 1 5 4 ( ) ( )2 ( )(6 ) 2 18 2 40 4 5 8 22 7 5 (12) 6 (12) 7 21 5 7 4 ( )( ) (60) 14 (30) 4 5 7 3 1 99 7 (1)3 ( )16 2 2 8 1

3、 18 1 1 7 1 ( ) ( )2 ( )(6 ) 2 3 2 36 6 3 9 1 9 5 (16) 1 (16) 8 16 1 9 6 ( )( ) (66) 16 (33) 6 7 9 1 1 18 7 (3)2 ( )12 6 6 2 1 4 1 1 3 1 ( ) ( )2 ( )(5 ) 2 4 2 40 4 5 1 1 6 2 (5) 8 (5) 2 6 1 5 8 ( )( ) (78) 4 (6) 8 3 5 1 7 12 7 (1)2 ( )48 8 8 6 1 8 1 1 5 1 ( ) ( )2 ( )(6 ) 2 5 2 40 4 5 7 19 8 2 (7)

4、7 (7) 6 18 1 9 6 ( )( ) (66) 16 (24) 6 7 9 4 1 17 8 (2)3 ( )45 5 5 9 1 24 1 1 5 2 ( ) ( )3 ( )(6 ) 3 7 3 24 4 3 10 1 6 4 (8) 9 (8) 9 27 3 7 4 ( )( ) (6) 16 (48) 4 5 7 7 1 47 5 (3)2 ( )18 6 6 3 1 8 1 1 3 1 ( ) ( )2 ( )(6 ) 2 2 2 12 2 3 1 1 6 3 (4) 7 (4) 2 4 1 5 2 ( )( ) (48) 20 (3) 2 3 5 3 3 63 4 (3)

5、2 ( )14 2 2 7 1 10 1 1 1 4 ( ) ( )3 ( )(2 ) 2 7 2 20 2 5 4 11 7 8 (3) 2 (3) 5 10 5 7 4 ( )( ) (66) 20 (6) 4 5 7 1 7 12 4 (2)2 ( )18 6 6 3 3 14 1 1 1 1 ( ) ( )2 ( )(4 ) 2 18 2 20 2 5 3 7 8 1 (9) 6 (9) 2 6 1 9 6 ( )( ) (102) 14 (45) 6 7 9 6 1 56 7 (1)3 ( )42 7 7 6 4 27 1 1 3 6 ( ) ( )2 ( )(3 ) 3 24 3

6、20 2 5 1 1 7 1 (4) 2 (4) 7 21 1 7 2 ( )( ) (48) 10 (12) 2 5 7 5 1 35 8 (2)2 ( )24 6 6 4 4 6 1 1 1 6 ( ) ( )3 ( )(5 ) 3 12 2 20 2 5 8 1 9 2 (12) 8 (12) 9 18 7 9 8 ( )( ) (102) 6 (36) 8 7 9 1 10 42 3 (1)2 ( )27 9 9 3 4 3 1 1 1 2 ( ) ( )2 ( )(5 ) 3 8 3 12 2 3 1 13 3 9 (14) 7 (14) 6 12 1 5 8 ( )( ) (42)

7、 8 (45) 8 3 5 7 1 17 3 (1)3 ( )48 8 8 6 2 18 1 1 3 4 ( ) ( )3 ( )(3 ) 3 14 2 40 4 5 1 1 2 1 (10) 9 (10) 2 6 1 9 6 ( )( ) (6) 2 (45) 6 7 9 6 1 82 4 (3)2 ( )45 5 5 9 1 12 1 1 1 1 ( ) ( )3 ( )(6 ) 2 2 3 36 6 3 7 15 1 3 (9) 2 (9) 8 16 7 5 8 ( )( ) (66) 6 (9) 8 3 5 1 3 12 8 (1)3 ( )10 2 2 5 4 15 1 1 3 1

8、( ) ( )2 ( )(6 ) 3 16 3 12 2 3 1 3 8 9 (4) 1 (4) 2 4 1 7 4 ( )( ) (18) 6 (36) 4 5 7 1 1 24 9 (1)2 ( )6 2 2 3 4 3 1 1 3 1 ( ) ( )3 ( )(2 ) 3 24 3 12 2 3 1 7 3 4 (4) 4 (4) 3 6 1 7 8 ( )( ) (108) 2 (45) 8 5 7 3 3 64 1 (2)3 ( )20 4 4 5 3 14 1 1 1 2 ( ) ( )2 ( )(4 ) 2 24 2 36 6 3 3 5 2 7 (9) 6 (9) 2 6 1

9、9 8 ( )( ) (66) 12 (45) 8 7 9 1 1 68 6 (1)3 ( )15 3 3 5 3 8 2 1 1 4 ( ) ( )3 ( )(6 ) 2 6 3 60 6 5 8 15 6 9 (8) 5 (8) 7 14 1 7 6 ( )( ) (42) 4 (27) 6 5 7 8 6 17 8 (1)2 ( )42 7 7 6 1 4 1 1 5 1 ( ) ( )3 ( )(3 ) 2 8 2 24 4 3 3 1 3 3 (9) 7 (9) 4 12 1 9 6 ( )( ) (24) 18 (48) 6 7 9 9 7 104 8 (3)3 ( )72 8 8

10、 9 1 6 2 1 1 1 ( ) ( )3 ( )(3 ) 2 6 3 20 2 5 7 11 6 5 (14) 3 (14) 6 12 5 7 4 ( )( ) (114) 12 (36) 4 5 7 9 9 15 4 (3)2 ( )48 8 8 6 1 12 1 1 1 2 ( ) ( )2 ( )(4 ) 2 7 2 12 2 3 1 1 6 7 (11) 8 (11) 2 4 5 5 6 ( )( ) (54) 18 (60) 6 3 5 1 1 76 5 (1)3 ( )12 2 2 6 3 16 1 1 5 1 ( ) ( )2 ( )(5 ) 2 6 3 40 4 5 7 1 2 2 (6) 1 (6) 6 12 7 5 8 ( )( ) (30) 2 (15) 8 3 5 9 7 82 5