七年级数学上册有理数计算题精练 28.docx

1、七年级数学上册有理数计算题精练 28 1 5 2 ( )( ) (18) 16 (51) 2 3 5 1 3 52 8 (2)3 ( )8 2 2 4 1 12 1 1 3 6 ( ) ( )3 ( )(5 ) 2 2 3 40 4 5 7 1 4 1 (17) 7 (17) 6 18 1 5 4 ( )( ) (102) 12 (45) 4 3 5 7 5 17 5 (2)3 ( )12 6 6 2 1 14 1 1 5 6 ( ) ( )3 ( )(5 ) 2 3 2 60 6 5 6 1 3 1 (16) 7 (16) 5 10 1 9 4 ( )( ) (96) 2 (3) 4 7 9

2、 5 1 15 3 (3)3 ( )12 4 4 3 4 9 1 1 1 2 ( ) ( )3 ( )(4 ) 3 32 3 36 6 3 5 1 8 2 (9) 8 (9) 4 8 1 7 4 ( )( ) (12) 18 (12) 4 5 7 1 4 15 6 (2)2 ( )12 3 3 4 3 14 1 1 3 2 ( ) ( )3 ( )(3 ) 2 27 2 12 2 3 4 16 9 6 (5) 8 (5) 5 15 1 5 2 ( )( ) (54) 2 (33) 2 3 5 1 4 39 8 (2)3 ( )20 5 5 4 4 24 1 1 3 4 ( ) ( )3 ( )

3、(2 ) 3 28 2 24 4 3 5 1 5 4 (5) 4 (5) 6 18 1 5 8 ( )( ) (114) 4 (51) 8 3 5 1 1 98 4 (2)2 ( )16 2 2 8 4 21 1 1 5 6 ( ) ( )2 ( )(3 ) 3 12 2 60 6 5 8 22 3 6 (17) 1 (17) 7 21 1 9 2 ( )( ) (120) 4 (21) 2 7 9 3 1 95 9 (1)3 ( )32 4 4 8 1 12 1 1 5 1 ( ) ( )3 ( )(2 ) 2 4 3 36 6 3 4 7 3 3 (1) 8 (1) 3 6 1 5 4 (

4、 )( ) (90) 18 (54) 4 3 5 9 9 12 7 (3)2 ( )32 8 8 4 1 12 1 1 3 1 ( ) ( )3 ( )(5 ) 2 4 2 20 2 5 9 25 1 5 (8) 8 (8) 8 24 1 9 2 ( )( ) (36) 2 (30) 2 7 9 5 5 79 4 (3)3 ( )36 6 6 6 2 18 1 1 3 6 ( ) ( )2 ( )(3 ) 3 8 2 40 4 5 4 1 7 8 (19) 6 (19) 5 10 5 7 4 ( )( ) (6) 12 (51) 4 5 7 1 5 19 6 (2)3 ( )18 6 6 3

5、1 14 1 1 3 2 ( ) ( )2 ( )(3 ) 2 8 2 12 2 3 4 16 7 7 (3) 7 (3) 5 15 1 5 6 ( )( ) (120) 4 (39) 6 3 5 10 8 15 2 (1)3 ( )18 9 9 2 2 9 2 1 3 1 ( ) ( )2 ( )(3 ) 3 14 3 12 2 3 5 19 6 3 (19) 4 (19) 6 18 1 5 6 ( )( ) (48) 12 (9) 6 3 5 1 1 16 1 (3)3 ( )28 4 4 7 1 12 1 1 1 6 ( ) ( )3 ( )(6 ) 2 5 2 20 2 5 1 5 8

6、 7 (12) 6 (12) 3 6 1 9 8 ( )( ) (90) 6 (42) 8 7 9 8 8 17 9 (1)2 ( )35 7 7 5 1 3 1 1 3 1 ( ) ( )2 ( )(6 ) 3 7 3 20 2 5 4 8 6 6 (14) 5 (14) 3 9 1 5 6 ( )( ) (30) 4 (36) 6 3 5 4 6 36 9 (1)3 ( )20 5 5 4 1 21 1 1 5 1 ( ) ( )3 ( )(3 ) 3 8 3 24 4 3 4 10 5 8 (8) 9 (8) 3 9 1 7 8 ( )( ) (18) 16 (54) 8 5 7 8 6

7、 58 7 (3)3 ( )42 7 7 6 4 18 1 1 3 1 ( ) ( )3 ( )(6 ) 3 36 2 20 2 5 1 5 7 9 (15) 2 (15) 2 6 1 7 2 ( )( ) (84) 10 (15) 2 5 7 9 7 24 4 (2)2 ( )24 8 8 3 1 16 1 1 7 1 ( ) ( )2 ( )(6 ) 2 9 3 60 6 5 1 7 3 2 (16) 8 (16) 2 6 3 5 4 ( )( ) (90) 4 (21) 4 3 5 6 1 74 1 (1)3 ( )42 7 7 6 1 8 1 1 1 2 ( ) ( )3 ( )(5

8、) 2 8 3 36 6 3 5 1 5 3 (9) 5 (9) 4 12 1 7 8 ( )( ) (54) 4 (6) 8 5 7 1 1 36 4 (1)3 ( )4 2 2 2 2 18 1 1 1 6 ( ) ( )2 ( )(4 ) 3 4 2 60 6 5 2 7 4 7 (9) 7 (9) 3 6 1 9 2 ( )( ) (66) 6 (18) 2 7 9 1 1 14 1 (3)2 ( )24 3 3 8 4 21 1 1 1 4 ( ) ( )2 ( )(2 ) 3 12 3 12 2 3 1 9 4 8 (15) 5 (15) 4 8 1 7 6 ( )( ) (66)

9、 18 (15) 6 5 7 8 8 64 4 (2)3 ( )63 9 9 7 1 24 1 1 7 1 ( ) ( )3 ( )(2 ) 3 2 3 60 6 5 2 5 7 5 (11) 1 (11) 3 6 1 7 6 ( )( ) (72) 6 (3) 6 5 7 1 7 18 9 (3)2 ( )36 6 6 6 1 18 1 1 7 6 ( ) ( )2 ( )(5 ) 2 7 2 60 6 5 1 1 7 1 (5) 7 (5) 4 12 3 9 2 ( )( ) (36) 8 (51) 2 7 9 1 7 29 4 (1)2 ( )24 8 8 3 3 16 2 1 1 1

10、( ) ( )3 ( )(5 ) 2 12 3 40 4 5 8 1 8 5 (16) 3 (16) 9 27 9 7 8 ( )( ) (12) 14 (9) 8 5 7 5 1 32 9 (1)3 ( )8 4 4 2 4 18 1 1 3 1 ( ) ( )3 ( )(2 ) 3 36 2 24 4 3 1 7 6 1 (10) 4 (10) 4 8 1 7 6 ( )( ) (12) 8 (12) 6 5 7 1 8 19 3 (3)2 ( )49 7 7 7 2 24 1 1 5 1 ( ) ( )2 ( )(5 ) 3 18 2 36 6 3 7 1 8 8 (2) 3 (2) 6 12 3 5 2 ( )( ) (24) 18 (45) 2 3 5 5 1 19 2 (3)3 ( )12 6 6 2 2 18 1