北师大版七年级数学上册有理数计算题精选 112.docx

1、北师大版七年级数学上册有理数计算题精选 112 1 6 16 2 (1)2 ( )20 5 5 4 2 27 1 1 1 4 ( ) ( )3 ( )(6 ) 3 6 2 40 4 5 8 15 7 1 (4) 2 (4) 7 14 7 9 8 ( )( ) (60) 10 (27) 8 7 9 3 3 47 7 (3)2 ( )12 4 4 3 4 9 1 1 7 1 ( ) ( )2 ( )(2 ) 3 24 2 36 6 3 3 9 5 2 (13) 3 (13) 4 8 3 9 2 ( )( ) (72) 14 (60) 2 7 9 8 10 72 2 (2)2 ( )72 9 9 8

2、 4 27 1 1 5 4 ( ) ( )3 ( )(2 ) 3 32 2 36 6 3 6 16 2 7 (1) 6 (1) 5 15 1 9 6 ( )( ) (90) 6 (45) 6 7 9 1 1 19 6 (3)2 ( )24 3 3 8 3 2 2 1 1 1 ( ) ( )2 ( )(4 ) 2 24 3 12 2 3 1 15 4 2 (14) 2 (14) 8 16 1 9 2 ( )( ) (54) 18 (39) 2 7 9 5 5 69 6 (1)3 ( )28 4 4 7 1 16 1 1 1 4 ( ) ( )3 ( )(3 ) 2 2 2 20 2 5 7 13

3、 8 9 (3) 4 (3) 6 12 7 5 8 ( )( ) (114) 4 (24) 8 3 5 7 1 19 1 (1)3 ( )24 8 8 3 2 6 1 1 5 4 ( ) ( )3 ( )(4 ) 3 16 2 60 6 5 1 11 7 6 (19) 1 (19) 6 12 1 9 2 ( )( ) (90) 12 (45) 2 7 9 1 6 76 5 (1)2 ( )30 5 5 6 4 24 1 1 7 1 ( ) ( )2 ( )(5 ) 3 16 2 60 6 5 6 9 7 7 (17) 2 (17) 5 10 1 7 6 ( )( ) (102) 20 (45)

4、 6 5 7 4 6 19 3 (2)3 ( )35 5 5 7 1 6 1 1 5 4 ( ) ( )3 ( )(3 ) 2 2 3 24 4 3 1 22 1 1 (2) 5 (2) 7 21 1 5 8 ( )( ) (54) 4 (15) 8 3 5 1 8 37 4 (2)3 ( )18 9 9 2 3 8 1 1 1 1 ( ) ( )3 ( )(3 ) 2 9 3 20 2 5 6 9 6 6 (19) 2 (19) 5 10 1 5 8 ( )( ) (66) 10 (48) 8 3 5 1 8 94 6 (2)2 ( )56 7 7 8 1 24 1 1 1 1 ( ) (

5、)3 ( )(3 ) 3 2 2 60 6 5 8 1 2 3 (5) 5 (5) 9 18 1 9 4 ( )( ) (96) 14 (18) 4 7 9 1 2 34 3 (1)2 ( )6 3 3 2 4 6 1 1 1 1 ( ) ( )2 ( )(2 ) 3 16 3 20 2 5 1 1 5 2 (5) 4 (5) 8 24 1 7 4 ( )( ) (90) 20 (30) 4 5 7 1 10 19 3 (2)2 ( )63 9 9 7 1 21 2 1 7 6 ( ) ( )2 ( )(3 ) 3 2 3 60 6 5 1 8 1 8 (5) 3 (5) 3 9 1 9 4

6、( )( ) (102) 16 (24) 4 7 9 5 5 14 8 (1)2 ( )24 4 4 6 1 12 1 1 3 4 ( ) ( )3 ( )(6 ) 2 9 3 24 4 3 1 1 3 5 (12) 7 (12) 3 9 1 9 6 ( )( ) (90) 2 (48) 6 7 9 8 1 109 9 (2)2 ( )81 9 9 9 4 27 2 1 3 1 ( ) ( )3 ( )(6 ) 3 16 3 40 4 5 10 28 6 4 (7) 8 (7) 9 27 3 9 2 ( )( ) (78) 14 (21) 2 7 9 6 8 16 7 (2)2 ( )14 7

7、 7 2 3 4 1 1 1 4 ( ) ( )3 ( )(5 ) 2 27 2 36 6 3 5 13 3 8 (20) 7 (20) 6 12 5 5 6 ( )( ) (12) 16 (6) 6 3 5 1 8 36 3 (3)3 ( )36 9 9 4 1 21 1 1 1 4 ( ) ( )3 ( )(3 ) 3 5 2 20 2 5 9 1 5 6 (15) 5 (15) 8 24 5 9 4 ( )( ) (90) 16 (36) 4 7 9 7 9 16 3 (2)2 ( )24 8 8 3 1 10 1 1 3 4 ( ) ( )3 ( )(5 ) 2 4 3 12 2 3

8、1 7 7 6 (14) 3 (14) 2 6 7 7 6 ( )( ) (30) 20 (27) 6 5 7 5 5 42 7 (1)2 ( )12 4 4 3 1 10 1 1 1 2 ( ) ( )2 ( )(6 ) 2 2 3 36 6 3 1 9 5 8 (8) 5 (8) 5 10 1 7 2 ( )( ) (54) 12 (27) 2 5 7 8 8 105 5 (2)2 ( )63 7 7 9 2 9 1 1 3 6 ( ) ( )3 ( )(2 ) 3 18 2 40 4 5 1 7 9 9 (16) 1 (16) 2 6 9 7 8 ( )( ) (54) 14 (6) 8

9、 5 7 3 3 97 9 (1)3 ( )32 4 4 8 4 21 1 1 1 6 ( ) ( )2 ( )(5 ) 3 20 2 20 2 5 7 1 9 4 (5) 6 (5) 6 18 1 5 2 ( )( ) (48) 16 (39) 2 3 5 4 6 73 6 (2)3 ( )40 5 5 8 1 3 2 1 5 6 ( ) ( )2 ( )(6 ) 3 9 3 60 6 5 1 1 6 5 (13) 9 (13) 2 6 1 7 2 ( )( ) (54) 10 (54) 2 5 7 1 5 27 4 (3)2 ( )12 4 4 3 2 6 1 1 1 4 ( ) ( )2

10、 ( )(5 ) 3 6 2 60 6 5 3 9 4 3 (20) 3 (20) 4 8 7 5 8 ( )( ) (24) 20 (12) 8 3 5 5 3 13 8 (2)3 ( )8 4 4 2 4 12 1 1 7 1 ( ) ( )3 ( )(6 ) 3 24 3 36 6 3 3 5 3 4 (5) 2 (5) 2 6 7 5 6 ( )( ) (114) 4 (57) 6 3 5 2 4 96 9 (1)3 ( )24 3 3 8 1 16 1 1 1 1 ( ) ( )3 ( )(5 ) 2 8 2 24 4 3 1 11 8 9 (14) 1 (14) 5 10 7 5 6 ( )( ) (120) 4 (45) 6 3 5 1 1 43 4 (1)2 ( )18 6 6 3 4 18 1 1 5 1 ( ) ( )2 ( )(5 ) 3 12 3