七年级数学上册有理数计算题精练 70.docx

1、七年级数学上册有理数计算题精练 70 8 22 4 9 (8) 9 (8) 7 21 1 7 2 ( )( ) (114) 8 (42) 2 5 7 1 7 17 8 (1)3 ( )18 6 6 3 2 12 1 1 7 1 ( ) ( )2 ( )(4 ) 3 4 2 60 6 5 5 1 2 8 (16) 1 (16) 4 8 5 9 4 ( )( ) (108) 2 (9) 4 7 9 3 1 96 8 (1)2 ( )16 2 2 8 2 27 1 1 5 1 ( ) ( )2 ( )(6 ) 3 8 2 24 4 3 9 1 9 8 (14) 9 (14) 8 16 5 7 6 (

2、 )( ) (18) 4 (51) 6 5 7 8 1 15 5 (3)2 ( )56 7 7 8 1 6 1 1 1 6 ( ) ( )2 ( )(3 ) 2 7 3 60 6 5 6 1 7 1 (12) 7 (12) 5 15 1 9 4 ( )( ) (48) 20 (42) 4 7 9 1 1 98 1 (1)2 ( )16 2 2 8 1 12 1 1 5 1 ( ) ( )2 ( )(2 ) 3 3 3 24 4 3 3 1 3 7 (2) 7 (2) 4 8 3 7 4 ( )( ) (48) 8 (24) 4 5 7 1 3 19 6 (2)3 ( )12 2 2 6 3 1

3、8 1 1 1 4 ( ) ( )2 ( )(6 ) 2 6 2 40 4 5 1 1 3 3 (19) 8 (19) 4 12 7 7 8 ( )( ) (108) 10 (60) 8 5 7 3 3 15 7 (1)3 ( )8 4 4 2 4 18 1 1 5 4 ( ) ( )3 ( )(5 ) 3 12 2 36 6 3 5 13 5 9 (1) 2 (1) 4 12 1 7 2 ( )( ) (24) 16 (15) 2 5 7 1 7 19 7 (1)2 ( )30 6 6 5 4 12 2 1 1 4 ( ) ( )3 ( )(4 ) 3 16 3 24 4 3 3 5 8 1

4、 (8) 1 (8) 2 6 1 7 6 ( )( ) (54) 10 (15) 6 5 7 6 6 75 1 (2)3 ( )40 5 5 8 1 18 1 1 1 1 ( ) ( )3 ( )(2 ) 3 5 3 12 2 3 1 7 6 1 (1) 6 (1) 4 8 7 7 6 ( )( ) (18) 14 (30) 6 5 7 7 1 74 8 (1)3 ( )64 8 8 8 3 8 1 1 3 1 ( ) ( )3 ( )(6 ) 2 12 2 12 2 3 1 1 7 9 (11) 2 (11) 3 9 1 7 4 ( )( ) (72) 8 (6) 4 5 7 5 5 19

5、4 (3)3 ( )12 6 6 2 4 15 1 1 1 6 ( ) ( )2 ( )(6 ) 3 24 2 20 2 5 4 1 3 3 (2) 5 (2) 3 9 1 7 8 ( )( ) (84) 4 (30) 8 5 7 6 8 94 6 (2)3 ( )56 7 7 8 2 27 1 1 1 6 ( ) ( )3 ( )(3 ) 3 10 2 20 2 5 7 17 6 3 (11) 2 (11) 8 16 7 5 8 ( )( ) (114) 2 (36) 8 3 5 8 1 42 6 (1)3 ( )35 7 7 5 1 21 1 1 1 1 ( ) ( )2 ( )(4 )

6、3 9 2 12 2 3 1 13 9 5 (20) 8 (20) 6 12 1 9 2 ( )( ) (96) 18 (30) 2 7 9 1 6 12 1 (2)3 ( )10 5 5 2 1 15 1 1 1 1 ( ) ( )2 ( )(2 ) 3 4 3 36 6 3 1 1 6 6 (7) 7 (7) 7 21 1 5 2 ( )( ) (42) 12 (9) 2 3 5 2 2 99 6 (1)2 ( )24 3 3 8 1 18 1 1 5 1 ( ) ( )2 ( )(5 ) 3 2 3 40 4 5 1 20 1 5 (2) 1 (2) 7 21 3 7 2 ( )( )

7、(96) 2 (3) 2 5 7 4 1 12 2 (1)3 ( )20 5 5 4 1 6 1 1 7 1 ( ) ( )2 ( )(2 ) 3 8 3 60 6 5 5 1 3 5 (18) 4 (18) 4 8 3 5 4 ( )( ) (36) 18 (15) 4 3 5 1 1 89 1 (1)2 ( )18 2 2 9 1 16 1 1 3 4 ( ) ( )2 ( )(6 ) 2 7 3 12 2 3 7 15 4 3 (10) 2 (10) 8 16 1 9 6 ( )( ) (78) 20 (57) 6 7 9 1 10 16 3 (2)2 ( )18 9 9 2 1 21

8、1 1 1 6 ( ) ( )3 ( )(5 ) 3 5 2 40 4 5 1 1 2 2 (8) 4 (8) 9 27 1 7 8 ( )( ) (48) 8 (3) 8 5 7 3 1 18 4 (2)3 ( )4 2 2 2 1 12 2 1 3 6 ( ) ( )2 ( )(5 ) 3 4 3 40 4 5 1 17 2 9 (9) 5 (9) 6 18 1 9 2 ( )( ) (30) 20 (42) 2 7 9 4 2 85 8 (3)2 ( )21 3 3 7 2 24 2 1 3 4 ( ) ( )2 ( )(2 ) 3 18 3 12 2 3 1 5 1 1 (10) 2

9、(10) 2 6 1 9 8 ( )( ) (72) 12 (27) 8 7 9 1 10 18 6 (2)3 ( )18 9 9 2 3 10 1 1 7 1 ( ) ( )3 ( )(5 ) 2 6 2 60 6 5 1 7 5 8 (4) 5 (4) 2 6 1 7 6 ( )( ) (120) 16 (51) 6 5 7 8 8 16 5 (2)3 ( )21 7 7 3 1 21 1 1 1 1 ( ) ( )2 ( )(4 ) 3 4 2 40 4 5 4 10 1 6 (1) 5 (1) 3 9 1 9 6 ( )( ) (96) 4 (42) 6 7 9 4 6 12 7 (2

10、)2 ( )40 5 5 8 4 6 2 1 3 2 ( ) ( )2 ( )(4 ) 3 8 3 12 2 3 1 5 5 5 (2) 3 (2) 2 4 1 9 4 ( )( ) (66) 4 (45) 4 7 9 5 3 12 1 (3)3 ( )36 4 4 9 4 27 2 1 3 1 ( ) ( )2 ( )(2 ) 3 28 3 20 2 5 1 9 4 4 (15) 6 (15) 5 10 1 7 4 ( )( ) (18) 20 (21) 4 5 7 5 1 19 8 (2)2 ( )24 4 4 6 2 3 1 1 1 1 ( ) ( )2 ( )(5 ) 3 16 3 36 6 3 4 1 3 9 (8) 7 (8) 5 10 5 5 6 ( )( ) (12) 10 (42) 6 3 5 1 4 3