北师大版七年级数学上册有理数计算题精选 157.docx

1、北师大版七年级数学上册有理数计算题精选 157 1 15 1 1 3 2 ( ) ( )3 ( )(3 ) 3 9 3 12 2 3 1 23 1 5 (9) 1 (9) 8 24 1 5 2 ( )( ) (66) 16 (48) 2 3 5 1 5 107 4 (1)2 ( )36 4 4 9 1 16 2 1 1 2 ( ) ( )3 ( )(3 ) 2 9 3 12 2 3 2 1 6 1 (18) 3 (18) 3 6 1 7 8 ( )( ) (6) 20 (30) 8 5 7 10 1 59 7 (1)2 ( )54 9 9 6 1 12 1 1 7 6 ( ) ( )3 ( )

2、(4 ) 2 5 3 60 6 5 7 11 2 7 (20) 5 (20) 6 12 5 7 4 ( )( ) (120) 18 (15) 4 5 7 1 3 48 3 (2)2 ( )10 2 2 5 1 2 1 1 1 1 ( ) ( )2 ( )(2 ) 2 8 2 12 2 3 1 1 7 8 (10) 5 (10) 2 4 5 9 4 ( )( ) (36) 16 (33) 4 7 9 1 1 19 2 (2)2 ( )6 2 2 3 4 9 1 1 1 2 ( ) ( )3 ( )(6 ) 3 12 2 12 2 3 2 7 1 3 (5) 1 (5) 3 6 1 7 2 ( )

3、( ) (6) 8 (18) 2 5 7 1 1 84 2 (3)3 ( )27 3 3 9 4 6 2 1 3 1 ( ) ( )2 ( )(2 ) 3 20 3 12 2 3 6 13 8 7 (6) 9 (6) 7 14 1 7 2 ( )( ) (6) 10 (3) 2 5 7 3 1 85 5 (3)3 ( )36 4 4 9 1 12 1 1 1 6 ( ) ( )2 ( )(2 ) 2 5 2 20 2 5 2 1 7 1 (10) 6 (10) 3 9 5 7 6 ( )( ) (60) 6 (24) 6 5 7 4 1 88 7 (3)2 ( )27 3 3 9 1 12 2

4、 1 1 1 ( ) ( )2 ( )(5 ) 2 5 3 20 2 5 7 1 4 7 (3) 2 (3) 6 18 3 9 4 ( )( ) (66) 18 (15) 4 7 9 1 1 18 7 (1)2 ( )6 2 2 3 1 18 2 1 1 1 ( ) ( )3 ( )(2 ) 2 5 3 36 6 3 4 5 5 3 (3) 3 (3) 3 6 1 7 4 ( )( ) (6) 20 (57) 4 5 7 1 3 72 3 (3)2 ( )12 2 2 6 3 16 1 1 7 6 ( ) ( )3 ( )(6 ) 2 9 3 60 6 5 3 1 5 4 (16) 9 (16

5、) 4 8 9 5 8 ( )( ) (6) 6 (39) 8 3 5 5 1 19 1 (3)2 ( )36 6 6 6 4 18 1 1 3 2 ( ) ( )2 ( )(3 ) 3 8 3 12 2 3 1 11 1 2 (14) 2 (14) 6 12 3 9 2 ( )( ) (66) 16 (18) 2 7 9 4 4 18 3 (1)2 ( )45 5 5 9 1 12 1 1 5 4 ( ) ( )2 ( )(2 ) 2 2 2 24 4 3 6 9 7 8 (6) 1 (6) 5 10 3 7 2 ( )( ) (114) 18 (54) 2 5 7 1 1 13 8 (1)

6、3 ( )16 4 4 4 1 21 1 1 3 1 ( ) ( )2 ( )(4 ) 3 8 2 12 2 3 10 19 7 6 (15) 9 (15) 9 18 5 9 6 ( )( ) (30) 20 (45) 6 7 9 10 1 12 5 (1)2 ( )72 9 9 8 2 6 1 1 3 1 ( ) ( )3 ( )(6 ) 3 10 2 24 4 3 1 15 9 6 (16) 5 (16) 7 14 3 5 2 ( )( ) (66) 20 (48) 2 3 5 7 9 77 7 (3)3 ( )64 8 8 8 3 2 2 1 1 4 ( ) ( )3 ( )(3 ) 2

7、 15 3 20 2 5 9 15 9 4 (2) 9 (2) 8 16 1 7 2 ( )( ) (66) 8 (48) 2 5 7 5 1 12 3 (1)3 ( )24 4 4 6 4 24 1 1 5 6 ( ) ( )3 ( )(2 ) 3 32 3 40 4 5 1 28 4 3 (10) 1 (10) 9 27 7 5 8 ( )( ) (18) 8 (24) 8 3 5 5 7 13 6 (2)3 ( )36 6 6 6 1 14 1 1 3 6 ( ) ( )2 ( )(5 ) 2 5 2 40 4 5 1 1 1 8 (12) 4 (12) 4 12 1 5 2 ( )(

8、) (6) 14 (24) 2 3 5 3 3 16 7 (1)2 ( )12 2 2 6 1 10 1 1 1 4 ( ) ( )3 ( )(5 ) 2 9 2 36 6 3 1 1 7 8 (11) 7 (11) 7 14 1 7 4 ( )( ) (48) 20 (24) 4 5 7 3 5 13 4 (3)3 ( )16 4 4 4 4 12 1 1 1 1 ( ) ( )3 ( )(5 ) 3 24 2 24 4 3 3 5 3 7 (13) 7 (13) 2 4 5 5 4 ( )( ) (30) 12 (57) 4 3 5 6 6 69 9 (3)2 ( )49 7 7 7 2

9、21 1 1 1 4 ( ) ( )2 ( )(5 ) 3 12 3 60 6 5 1 7 3 5 (10) 3 (10) 4 8 3 5 2 ( )( ) (60) 20 (54) 2 3 5 3 3 73 6 (3)3 ( )16 2 2 8 1 14 1 1 1 6 ( ) ( )3 ( )(5 ) 2 3 2 20 2 5 8 26 4 6 (14) 3 (14) 9 27 1 9 4 ( )( ) (6) 12 (21) 4 7 9 1 6 13 5 (1)2 ( )14 7 7 2 1 9 1 1 7 6 ( ) ( )2 ( )(3 ) 3 8 2 60 6 5 1 11 8 2

10、 (17) 2 (17) 4 12 1 5 8 ( )( ) (66) 14 (30) 8 3 5 3 1 83 8 (3)3 ( )14 2 2 7 2 18 1 1 3 2 ( ) ( )2 ( )(5 ) 3 4 3 12 2 3 7 1 9 4 (7) 1 (7) 6 12 1 9 4 ( )( ) (42) 16 (51) 4 7 9 8 8 18 4 (3)2 ( )49 7 7 7 1 4 1 1 5 1 ( ) ( )3 ( )(5 ) 2 6 2 24 4 3 1 1 9 1 (16) 3 (16) 7 14 3 9 2 ( )( ) (48) 18 (24) 2 7 9 7 7 106 5 (2)3 ( )72 8 8 9 1 18 2 1 5 1 ( ) ( )2 ( )(5 ) 2 3 3 24 4 3 1 1 9 2 (1) 8 (1) 9 18