1、北师大版七年级数学上册有理数计算题精选 117 4 27 1 1 3 4 ( ) ( )2 ( )(2 ) 3 20 3 24 4 3 3 11 6 5 (9) 3 (9) 4 12 1 5 6 ( )( ) (12) 8 (9) 6 3 5 7 1 18 6 (1)3 ( )12 6 6 2 1 6 1 1 5 2 ( ) ( )3 ( )(6 ) 2 6 2 36 6 3 2 8 2 5 (1) 2 (1) 3 9 7 7 8 ( )( ) (48) 2 (42) 8 5 7 8 10 56 2 (1)3 ( )54 9 9 6 1 2 2 1 1 1 ( ) ( )2 ( )(6 ) 2
2、 7 3 24 4 3 1 20 9 6 (16) 9 (16) 7 21 3 5 4 ( )( ) (84) 10 (45) 4 3 5 8 1 79 4 (2)2 ( )42 7 7 6 1 12 1 1 3 4 ( ) ( )3 ( )(2 ) 3 8 3 24 4 3 5 17 4 9 (17) 6 (17) 6 18 5 9 4 ( )( ) (6) 18 (42) 4 7 9 7 1 27 7 (1)2 ( )18 6 6 3 3 4 1 1 1 1 ( ) ( )2 ( )(6 ) 2 12 2 12 2 3 1 3 1 2 (7) 7 (7) 2 4 1 9 4 ( )( )
3、(120) 12 (42) 4 7 9 1 1 12 4 (2)2 ( )6 3 3 2 1 10 1 1 7 1 ( ) ( )2 ( )(6 ) 2 7 2 36 6 3 1 1 3 5 (20) 4 (20) 9 18 1 9 2 ( )( ) (30) 8 (60) 2 7 9 10 8 49 3 (1)2 ( )27 9 9 3 3 2 1 1 1 6 ( ) ( )2 ( )(2 ) 2 18 3 60 6 5 6 20 5 5 (5) 5 (5) 7 21 7 9 6 ( )( ) (12) 6 (12) 6 7 9 6 6 86 8 (2)3 ( )63 7 7 9 2 3 1
4、 1 1 1 ( ) ( )3 ( )(3 ) 3 12 2 12 2 3 5 1 4 8 (7) 1 (7) 4 8 1 9 4 ( )( ) (6) 20 (21) 4 7 9 2 4 73 2 (1)2 ( )18 3 3 6 1 6 2 1 5 2 ( ) ( )2 ( )(6 ) 2 7 3 36 6 3 1 19 5 8 (3) 8 (3) 6 18 9 5 8 ( )( ) (66) 8 (21) 8 3 5 6 1 14 8 (2)2 ( )30 5 5 6 2 21 1 1 1 2 ( ) ( )2 ( )(3 ) 3 18 3 12 2 3 3 1 9 4 (13) 6 (
5、13) 4 8 7 9 8 ( )( ) (54) 20 (21) 8 7 9 1 1 89 9 (3)3 ( )56 8 8 7 2 18 1 1 5 2 ( ) ( )3 ( )(6 ) 3 12 2 24 4 3 1 1 7 5 (2) 7 (2) 5 15 1 7 6 ( )( ) (48) 16 (24) 6 5 7 1 3 39 4 (3)3 ( )8 2 2 4 1 6 1 1 7 1 ( ) ( )2 ( )(5 ) 3 7 2 60 6 5 1 1 9 2 (1) 3 (1) 3 9 3 7 2 ( )( ) (72) 16 (48) 2 5 7 4 1 18 8 (2)3
6、( )15 5 5 3 2 27 1 1 3 6 ( ) ( )3 ( )(2 ) 3 8 2 40 4 5 6 1 5 7 (3) 3 (3) 5 15 1 7 8 ( )( ) (30) 14 (33) 8 5 7 6 1 53 5 (3)2 ( )20 5 5 4 1 18 1 1 1 4 ( ) ( )2 ( )(3 ) 3 4 2 24 4 3 4 1 5 5 (3) 4 (3) 3 9 1 5 8 ( )( ) (90) 6 (30) 8 3 5 1 8 107 4 (1)2 ( )63 7 7 9 3 14 1 1 1 1 ( ) ( )3 ( )(3 ) 2 15 3 12 2
7、 3 10 26 5 8 (15) 8 (15) 9 27 1 7 8 ( )( ) (24) 16 (51) 8 5 7 4 4 48 8 (1)2 ( )25 5 5 5 1 2 1 1 3 1 ( ) ( )3 ( )(3 ) 2 7 2 20 2 5 1 5 6 2 (10) 2 (10) 2 6 3 9 4 ( )( ) (30) 6 (30) 4 7 9 1 1 72 2 (1)3 ( )72 9 9 8 2 6 1 1 3 2 ( ) ( )3 ( )(4 ) 3 14 2 24 4 3 7 17 4 6 (9) 3 (9) 8 16 3 7 4 ( )( ) (78) 18 (
8、45) 4 5 7 8 8 106 9 (2)2 ( )63 7 7 9 1 18 1 1 1 6 ( ) ( )2 ( )(2 ) 2 8 2 40 4 5 5 7 8 6 (16) 2 (16) 4 8 1 9 6 ( )( ) (42) 10 (15) 6 7 9 6 8 58 3 (3)3 ( )42 7 7 6 1 10 2 1 3 1 ( ) ( )2 ( )(6 ) 2 9 3 12 2 3 1 1 3 5 (15) 7 (15) 2 4 9 9 8 ( )( ) (96) 8 (30) 8 7 9 1 1 98 5 (1)3 ( )16 2 2 8 1 12 2 1 1 4 (
9、 ) ( )2 ( )(2 ) 3 8 3 20 2 5 1 1 7 9 (20) 2 (20) 2 4 7 7 8 ( )( ) (54) 6 (21) 8 5 7 1 7 19 7 (1)2 ( )16 8 8 2 1 18 1 1 5 1 ( ) ( )2 ( )(3 ) 3 8 2 36 6 3 1 7 3 9 (18) 8 (18) 3 6 3 9 4 ( )( ) (18) 10 (18) 4 7 9 1 1 13 2 (3)3 ( )48 8 8 6 1 6 2 1 3 4 ( ) ( )3 ( )(4 ) 2 4 3 12 2 3 5 1 6 9 (7) 1 (7) 4 8 1
10、 5 2 ( )( ) (102) 4 (42) 2 3 5 8 8 18 2 (1)3 ( )36 9 9 4 3 18 1 1 3 1 ( ) ( )3 ( )(5 ) 2 27 2 12 2 3 6 11 3 8 (17) 2 (17) 5 10 1 5 6 ( )( ) (66) 4 (45) 6 3 5 4 4 58 5 (2)2 ( )20 5 5 4 1 8 2 1 1 4 ( ) ( )3 ( )(5 ) 2 8 3 40 4 5 8 20 4 7 (19) 6 (19) 7 21 1 5 4 ( )( ) (108) 10 (36) 4 3 5 5 1 12 5 (1)2 ( )24 6 6 4 2 6 2 1 1 4 ( ) ( )3 ( )(5 ) 3 4 3 12 2 3 1 1 2 7 (12) 2 (12) 8 24
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