北师大版七年级数学上册有理数计算题精选 42.docx

1、北师大版七年级数学上册有理数计算题精选 42 1 1 56 8 (1)3 ( )32 8 8 4 2 9 2 1 5 1 ( ) ( )3 ( )(5 ) 3 18 3 60 6 5 7 17 5 3 (13) 8 (13) 6 18 1 9 6 ( )( ) (60) 16 (60) 6 7 9 1 8 47 2 (1)2 ( )35 7 7 5 4 15 2 1 5 6 ( ) ( )2 ( )(6 ) 3 20 3 40 4 5 3 13 1 7 (5) 8 (5) 4 12 1 9 2 ( )( ) (78) 8 (42) 2 7 9 1 1 14 9 (3)3 ( )16 2 2 8

2、 1 6 1 1 1 1 ( ) ( )3 ( )(5 ) 2 8 3 12 2 3 10 1 2 5 (12) 6 (12) 9 18 7 9 6 ( )( ) (24) 18 (30) 6 7 9 5 5 54 9 (3)3 ( )36 6 6 6 3 8 1 1 3 2 ( ) ( )2 ( )(4 ) 2 12 2 24 4 3 6 1 6 3 (20) 1 (20) 5 15 1 7 4 ( )( ) (72) 8 (27) 4 5 7 8 6 53 3 (3)3 ( )28 7 7 4 1 18 1 1 1 4 ( ) ( )2 ( )(2 ) 3 6 3 20 2 5 3 1 4

3、 8 (6) 1 (6) 4 8 1 7 4 ( )( ) (84) 6 (54) 4 5 7 1 1 24 5 (2)3 ( )18 6 6 3 1 14 1 1 5 4 ( ) ( )3 ( )(6 ) 2 7 3 40 4 5 1 1 7 1 (19) 1 (19) 2 6 3 5 2 ( )( ) (72) 18 (51) 2 3 5 3 1 46 6 (3)2 ( )20 4 4 5 2 9 1 1 5 1 ( ) ( )3 ( )(4 ) 3 10 2 24 4 3 1 7 1 5 (4) 1 (4) 2 6 5 9 6 ( )( ) (48) 6 (36) 6 7 9 1 10

4、16 4 (2)3 ( )72 9 9 8 2 9 2 1 3 4 ( ) ( )2 ( )(6 ) 3 10 3 12 2 3 1 1 7 1 (14) 9 (14) 3 6 5 5 6 ( )( ) (108) 18 (57) 6 3 5 9 7 55 3 (2)3 ( )48 8 8 6 3 14 1 1 1 6 ( ) ( )3 ( )(6 ) 2 6 3 20 2 5 8 1 2 1 (4) 1 (4) 9 18 7 5 6 ( )( ) (108) 12 (24) 6 3 5 10 8 75 9 (1)2 ( )72 9 9 8 3 18 1 1 5 1 ( ) ( )2 ( )(

5、4 ) 2 18 2 36 6 3 1 1 8 3 (18) 3 (18) 9 27 7 7 6 ( )( ) (24) 14 (42) 6 5 7 5 5 77 8 (3)3 ( )32 4 4 8 1 10 1 1 1 1 ( ) ( )3 ( )(4 ) 2 9 2 20 2 5 9 15 2 4 (2) 2 (2) 8 16 1 5 2 ( )( ) (78) 14 (54) 2 3 5 1 1 15 2 (1)2 ( )72 8 8 9 1 27 1 1 5 1 ( ) ( )2 ( )(5 ) 3 2 2 40 4 5 5 19 5 2 (9) 8 (9) 6 18 1 7 6 (

6、 )( ) (60) 14 (33) 6 5 7 4 4 16 7 (1)3 ( )6 3 3 2 1 4 1 1 1 1 ( ) ( )2 ( )(5 ) 2 4 3 20 2 5 6 1 8 1 (14) 5 (14) 7 21 5 9 4 ( )( ) (72) 18 (60) 4 7 9 1 1 93 1 (2)2 ( )56 7 7 8 1 10 2 1 7 2 ( ) ( )3 ( )(6 ) 2 9 3 36 6 3 1 20 4 2 (17) 5 (17) 7 21 7 9 6 ( )( ) (72) 14 (27) 6 7 9 5 5 56 7 (1)2 ( )24 6 6

7、4 3 2 2 1 1 1 ( ) ( )2 ( )(6 ) 2 21 3 36 6 3 1 19 3 7 (8) 4 (8) 6 18 1 7 6 ( )( ) (78) 20 (3) 6 5 7 10 8 33 4 (1)2 ( )18 9 9 2 1 18 1 1 7 6 ( ) ( )2 ( )(3 ) 2 3 3 60 6 5 7 15 8 7 (17) 3 (17) 8 16 3 7 4 ( )( ) (54) 14 (27) 4 5 7 5 1 52 8 (3)3 ( )24 4 4 6 3 10 2 1 1 4 ( ) ( )2 ( )(6 ) 2 21 3 20 2 5 1

8、9 2 3 (4) 8 (4) 5 10 7 9 8 ( )( ) (84) 6 (57) 8 7 9 1 10 18 7 (1)2 ( )63 9 9 7 1 18 1 1 5 2 ( ) ( )3 ( )(4 ) 2 2 2 24 4 3 9 1 1 5 (20) 9 (20) 8 16 9 7 8 ( )( ) (120) 14 (30) 8 5 7 1 1 16 8 (2)3 ( )6 3 3 2 1 9 1 1 1 1 ( ) ( )3 ( )(6 ) 3 3 2 60 6 5 1 7 8 2 (6) 9 (6) 3 6 1 9 2 ( )( ) (12) 18 (60) 2 7 9

9、 1 1 16 6 (3)3 ( )21 3 3 7 1 21 1 1 5 1 ( ) ( )2 ( )(3 ) 3 2 3 40 4 5 1 1 2 8 (4) 9 (4) 9 27 5 9 6 ( )( ) (48) 10 (45) 6 7 9 5 1 12 1 (1)2 ( )54 6 6 9 2 12 1 1 3 1 ( ) ( )3 ( )(3 ) 3 10 2 20 2 5 1 22 3 8 (9) 9 (9) 7 21 1 7 6 ( )( ) (42) 16 (15) 6 5 7 4 1 19 8 (2)3 ( )21 3 3 7 4 9 2 1 1 4 ( ) ( )2 (

10、)(2 ) 3 16 3 20 2 5 1 5 3 3 (8) 6 (8) 2 4 1 5 2 ( )( ) (90) 12 (27) 2 3 5 6 8 87 8 (2)2 ( )49 7 7 7 1 24 2 1 1 1 ( ) ( )3 ( )(6 ) 3 4 3 40 4 5 1 1 8 8 (10) 6 (10) 5 10 7 5 6 ( )( ) (24) 2 (18) 6 3 5 6 8 85 5 (1)3 ( )49 7 7 7 2 3 1 1 5 1 ( ) ( )3 ( )(5 ) 3 10 2 60 6 5 1 1 6 8 (11) 6 (11) 8 16 1 5 8 ( )( ) (6) 20 (60) 8 3 5 9 9 94 7 (1)3 ( )64 8 8 8 1 3 2 1 7 1 ( ) ( )3 ( )(2 )