七年级数学上册有理数计算强烈推荐 69.docx

1、七年级数学上册有理数计算强烈推荐 69 4 2 15 5 (3)3 ( )9 3 3 3 4 3 3 1 1 4 ( ) ( )3 ( )(5 ) 3 36 2 20 2 5 8 22 8 5 (5) 6 (5) 7 21 1 2 16 ( )( ) (120) 8 (30) 8 3 2 10 1 58 2 (3)3 ( )36 9 9 4 1 18 4 1 3 1 ( ) ( )2 ( )(3 ) 2 7 3 20 2 5 1 5 3 1 (17) 2 (17) 3 6 7 4 12 ( )( ) (108) 18 (12) 6 5 4 5 7 32 8 (1)2 ( )12 6 6 2 3

2、 4 2 1 5 2 ( ) ( )3 ( )(6 ) 2 21 3 36 6 3 1 1 6 5 (4) 2 (4) 4 12 1 2 12 ( )( ) (96) 8 (21) 6 3 2 1 1 13 2 (3)2 ( )18 2 2 9 1 12 1 1 1 1 ( ) ( )2 ( )(2 ) 2 6 2 24 4 3 7 23 6 3 (15) 6 (15) 8 24 3 2 8 ( )( ) (60) 20 (39) 4 3 2 5 5 19 4 (3)3 ( )54 6 6 9 2 24 4 1 3 4 ( ) ( )3 ( )(6 ) 3 6 3 20 2 5 3 9 2 7

3、 (16) 1 (16) 4 8 3 2 8 ( )( ) (54) 6 (9) 4 3 2 4 1 38 1 (3)2 ( )6 3 3 2 3 14 3 1 1 1 ( ) ( )2 ( )(2 ) 2 15 2 60 6 5 9 23 8 2 (13) 1 (13) 8 24 1 4 16 ( )( ) (54) 2 (60) 8 5 4 1 1 35 5 (1)2 ( )28 7 7 4 1 18 1 1 1 4 ( ) ( )2 ( )(2 ) 2 8 3 20 2 5 4 10 8 7 (14) 3 (14) 3 9 3 2 4 ( )( ) (48) 20 (51) 2 3 2

4、7 7 17 2 (1)3 ( )30 6 6 5 1 6 2 1 3 1 ( ) ( )3 ( )(5 ) 3 2 3 20 2 5 8 15 9 1 (20) 9 (20) 7 14 1 2 8 ( )( ) (48) 8 (36) 4 3 2 5 1 16 5 (3)3 ( )24 6 6 4 3 2 4 1 1 4 ( ) ( )2 ( )(2 ) 2 12 3 12 2 3 4 10 9 9 (5) 9 (5) 3 9 7 2 12 ( )( ) (90) 8 (42) 6 3 2 5 5 13 8 (3)3 ( )42 6 6 7 4 18 3 1 5 2 ( ) ( )3 ( )

5、(2 ) 3 16 2 36 6 3 1 8 5 8 (10) 5 (10) 3 9 7 2 12 ( )( ) (96) 10 (39) 6 3 2 6 8 15 5 (3)3 ( )28 7 7 4 3 4 2 1 3 6 ( ) ( )2 ( )(4 ) 2 24 3 40 4 5 10 1 2 9 (8) 8 (8) 9 27 7 6 16 ( )( ) (24) 18 (57) 8 7 6 5 7 74 9 (1)2 ( )48 6 6 8 2 9 1 1 7 6 ( ) ( )2 ( )(2 ) 3 14 3 60 6 5 3 1 4 7 (18) 7 (18) 4 8 7 6 1

6、6 ( )( ) (102) 16 (39) 8 7 6 1 1 65 1 (3)2 ( )40 8 8 5 1 18 1 1 7 4 ( ) ( )2 ( )(4 ) 3 5 2 60 6 5 1 1 4 9 (15) 4 (15) 9 18 9 6 16 ( )( ) (36) 12 (9) 8 7 6 10 1 26 9 (2)3 ( )27 9 9 3 1 12 1 1 1 1 ( ) ( )2 ( )(3 ) 2 3 3 20 2 5 1 5 7 7 (6) 3 (6) 2 6 9 2 16 ( )( ) (78) 8 (42) 8 3 2 5 1 24 9 (2)3 ( )12 4

7、 4 3 1 10 1 1 1 1 ( ) ( )2 ( )(6 ) 2 8 2 12 2 3 7 17 9 5 (8) 1 (8) 6 18 5 2 8 ( )( ) (48) 6 (3) 4 3 2 7 7 15 8 (3)2 ( )48 8 8 6 3 4 4 1 1 4 ( ) ( )3 ( )(3 ) 2 27 3 36 6 3 5 1 4 8 (8) 3 (8) 6 12 3 6 8 ( )( ) (90) 18 (6) 4 7 6 3 1 14 6 (2)2 ( )16 4 4 4 3 10 3 1 3 4 ( ) ( )2 ( )(6 ) 2 6 2 24 4 3 5 13 7

8、 6 (11) 7 (11) 4 12 7 2 16 ( )( ) (108) 10 (12) 8 3 2 7 7 108 4 (3)2 ( )72 8 8 9 1 3 1 1 1 4 ( ) ( )2 ( )(4 ) 3 7 3 20 2 5 4 10 2 7 (16) 5 (16) 3 9 5 2 12 ( )( ) (24) 20 (48) 6 3 2 1 7 12 7 (1)2 ( )54 6 6 9 1 14 3 1 3 1 ( ) ( )3 ( )(2 ) 2 6 2 40 4 5 5 13 9 2 (9) 1 (9) 6 12 1 6 4 ( )( ) (108) 18 (51)

9、 2 7 6 7 5 46 5 (3)3 ( )30 6 6 5 1 10 4 1 3 6 ( ) ( )3 ( )(5 ) 2 7 3 40 4 5 7 25 2 5 (20) 2 (20) 8 24 1 4 12 ( )( ) (60) 8 (24) 6 5 4 5 5 18 7 (3)3 ( )54 6 6 9 3 18 1 1 1 2 ( ) ( )3 ( )(3 ) 2 21 3 36 6 3 10 17 9 5 (18) 8 (18) 9 18 7 2 16 ( )( ) (66) 20 (12) 8 3 2 1 1 85 2 (2)2 ( )28 4 4 7 3 8 2 1 7

10、6 ( ) ( )3 ( )(5 ) 2 21 3 60 6 5 8 1 6 2 (16) 7 (16) 9 27 1 6 8 ( )( ) (78) 8 (6) 4 7 6 1 3 97 5 (2)2 ( )16 2 2 8 1 18 1 1 7 4 ( ) ( )3 ( )(2 ) 2 3 2 60 6 5 6 22 3 6 (3) 7 (3) 7 21 1 6 16 ( )( ) (120) 4 (51) 8 7 6 8 6 39 6 (1)2 ( )28 7 7 4 1 2 1 1 5 4 ( ) ( )2 ( )(2 ) 2 2 2 40 4 5 1 1 3 5 (10) 8 (10) 5 10 1 6 4 ( )( ) (90) 20 (36) 2 7 6 8 10 73 1 (1)2 ( )72 9 9 8 1 4 1 1 5 6 ( ) ( )2 (