七年级数学上册有理数计算强烈推荐 2.docx

1、七年级数学上册有理数计算强烈推荐 2 7 2 12 ( )( ) (78) 2 (42) 6 3 2 1 1 15 7 (1)2 ( )45 9 9 5 1 18 1 1 3 1 ( ) ( )2 ( )(4 ) 2 9 2 20 2 5 5 11 3 3 (2) 9 (2) 6 12 9 6 16 ( )( ) (84) 2 (51) 8 7 6 1 3 22 6 (2)2 ( )6 2 2 3 1 6 2 1 5 1 ( ) ( )2 ( )(2 ) 3 6 3 36 6 3 1 15 5 5 (5) 1 (5) 8 16 1 2 4 ( )( ) (48) 14 (45) 2 3 2 8

2、 8 17 5 (1)3 ( )49 7 7 7 1 24 4 1 5 2 ( ) ( )3 ( )(5 ) 3 9 3 24 4 3 7 1 1 5 (9) 9 (9) 6 18 3 4 8 ( )( ) (12) 10 (42) 4 5 4 9 7 97 2 (3)2 ( )64 8 8 8 1 24 1 1 1 1 ( ) ( )3 ( )(5 ) 3 8 3 24 4 3 5 1 4 4 (19) 3 (19) 4 12 7 4 12 ( )( ) (102) 12 (54) 6 5 4 1 3 47 6 (2)2 ( )10 2 2 5 3 18 1 1 1 4 ( ) ( )2 (

3、 )(3 ) 2 15 3 12 2 3 7 1 9 3 (18) 8 (18) 8 16 3 4 4 ( )( ) (66) 20 (15) 2 5 4 10 1 13 2 (1)3 ( )18 9 9 2 1 18 2 1 7 6 ( ) ( )3 ( )(3 ) 2 4 3 60 6 5 6 22 4 8 (7) 7 (7) 7 21 1 6 4 ( )( ) (72) 4 (30) 2 7 6 1 9 86 9 (1)2 ( )72 8 8 9 1 27 2 1 3 4 ( ) ( )3 ( )(4 ) 3 2 3 40 4 5 1 1 5 8 (12) 5 (12) 8 24 1 2

4、 4 ( )( ) (54) 10 (27) 2 3 2 3 3 87 7 (1)3 ( )14 2 2 7 1 8 3 1 7 1 ( ) ( )3 ( )(6 ) 2 7 2 36 6 3 2 1 7 8 (15) 6 (15) 3 9 9 2 16 ( )( ) (114) 10 (30) 8 3 2 1 2 39 1 (3)3 ( )12 3 3 4 2 3 1 1 5 6 ( ) ( )2 ( )(3 ) 3 8 2 60 6 5 4 10 6 6 (17) 2 (17) 3 9 7 4 12 ( )( ) (108) 12 (39) 6 5 4 8 8 17 1 (2)2 ( )4

5、9 7 7 7 3 10 1 1 3 1 ( ) ( )2 ( )(2 ) 2 15 2 24 4 3 8 1 9 3 (18) 7 (18) 9 18 1 4 8 ( )( ) (102) 12 (33) 4 5 4 3 3 15 8 (3)3 ( )14 2 2 7 4 18 4 1 1 4 ( ) ( )2 ( )(6 ) 3 24 3 40 4 5 8 19 3 5 (9) 6 (9) 9 18 7 6 12 ( )( ) (30) 6 (60) 6 7 6 1 5 23 2 (2)2 ( )12 4 4 3 1 12 2 1 3 1 ( ) ( )3 ( )(4 ) 3 3 3 20

6、 2 5 1 1 7 3 (3) 6 (3) 9 27 7 6 16 ( )( ) (24) 12 (33) 8 7 6 9 9 17 1 (2)2 ( )56 8 8 7 1 12 4 1 3 4 ( ) ( )3 ( )(5 ) 3 2 3 12 2 3 1 19 9 3 (17) 3 (17) 9 18 3 6 8 ( )( ) (36) 2 (9) 4 7 6 1 7 85 7 (3)3 ( )56 8 8 7 2 24 4 1 5 1 ( ) ( )2 ( )(2 ) 3 18 3 36 6 3 1 17 7 3 (8) 3 (8) 9 18 1 2 4 ( )( ) (96) 16

7、 (57) 2 3 2 1 1 44 1 (3)3 ( )40 8 8 5 3 12 1 1 1 4 ( ) ( )3 ( )(5 ) 2 24 2 20 2 5 3 1 7 9 (18) 5 (18) 2 4 5 4 12 ( )( ) (54) 2 (51) 6 5 4 1 5 77 4 (3)3 ( )36 6 6 6 1 3 1 1 7 6 ( ) ( )2 ( )(6 ) 3 2 2 60 6 5 4 5 4 5 (7) 8 (7) 3 6 7 4 16 ( )( ) (120) 20 (57) 8 5 4 1 1 16 3 (3)2 ( )32 8 8 4 3 16 4 1 1 4

8、 ( ) ( )2 ( )(3 ) 2 9 3 20 2 5 1 1 7 2 (9) 3 (9) 5 15 1 2 12 ( )( ) (84) 20 (51) 6 3 2 7 9 55 2 (2)3 ( )48 8 8 6 3 16 1 1 3 4 ( ) ( )2 ( )(3 ) 2 18 2 40 4 5 1 7 6 6 (16) 3 (16) 3 6 1 2 16 ( )( ) (12) 12 (24) 8 3 2 9 9 15 8 (2)2 ( )40 8 8 5 2 21 1 1 7 6 ( ) ( )3 ( )(5 ) 3 4 2 60 6 5 1 7 6 8 (9) 9 (9)

9、 2 6 1 4 16 ( )( ) (6) 4 (57) 8 5 4 1 3 16 3 (2)3 ( )8 4 4 2 3 4 2 1 5 4 ( ) ( )2 ( )(5 ) 2 21 3 40 4 5 6 1 2 8 (2) 4 (2) 5 10 3 4 8 ( )( ) (12) 2 (36) 4 5 4 1 1 38 4 (1)2 ( )36 9 9 4 4 3 4 1 7 6 ( ) ( )2 ( )(3 ) 3 16 3 60 6 5 6 1 4 2 (13) 5 (13) 7 21 1 2 16 ( )( ) (12) 16 (45) 8 3 2 8 10 18 6 (2)2

10、( )36 9 9 4 1 12 1 1 1 6 ( ) ( )2 ( )(6 ) 3 5 2 40 4 5 6 1 4 2 (10) 7 (10) 7 14 1 2 4 ( )( ) (36) 8 (54) 2 3 2 2 4 19 2 (1)3 ( )6 3 3 2 4 9 1 1 3 4 ( ) ( )3 ( )(2 ) 3 8 2 24 4 3 6 13 1 4 (20) 8 (20) 7 14 3 2 4 ( )( ) (102) 18 (39) 2 3 2 3 1 13 2 (3)2 ( )12 2 2 6 1 3 1 1 1 2 ( ) ( )2 ( )(6 ) 3 3 2 24 4 3 8 1 9 5 (9) 6 (9) 7 14 1 4 16 ( )( ) (96) 18 (60) 8 5 4 7 7 13 6 (3)3 ( )12 6