北师大版七年级数学上册有理数计算题精选 66.docx

1、北师大版七年级数学上册有理数计算题精选 66 1 3 17 6 (2)2 ( )10 2 2 5 4 15 2 1 1 1 ( ) ( )3 ( )(6 ) 3 12 3 12 2 3 1 3 2 1 (14) 9 (14) 2 4 1 7 4 ( )( ) (72) 18 (42) 4 5 7 5 1 12 1 (2)2 ( )12 4 4 3 1 15 1 1 5 1 ( ) ( )3 ( )(2 ) 3 2 3 36 6 3 7 1 4 1 (4) 6 (4) 6 12 7 7 6 ( )( ) (6) 20 (24) 6 5 7 4 1 55 2 (3)2 ( )30 5 5 6 1

2、10 1 1 7 4 ( ) ( )3 ( )(2 ) 2 4 3 60 6 5 10 26 7 1 (19) 8 (19) 9 27 1 5 6 ( )( ) (90) 4 (60) 6 3 5 1 4 16 4 (2)2 ( )10 5 5 2 4 24 1 1 5 1 ( ) ( )3 ( )(2 ) 3 8 3 60 6 5 1 3 7 3 (18) 4 (18) 2 4 9 5 8 ( )( ) (96) 8 (24) 8 3 5 4 4 59 2 (1)2 ( )30 5 5 6 3 12 2 1 1 4 ( ) ( )2 ( )(6 ) 2 24 3 12 2 3 1 1 1 1

3、 (2) 1 (2) 4 8 7 5 8 ( )( ) (78) 20 (15) 8 3 5 4 2 13 5 (2)2 ( )15 3 3 5 1 8 1 1 1 1 ( ) ( )3 ( )(3 ) 2 3 2 60 6 5 4 1 5 2 (13) 5 (13) 5 15 5 9 6 ( )( ) (114) 4 (39) 6 7 9 1 3 82 7 (1)3 ( )36 4 4 9 1 15 1 1 1 4 ( ) ( )3 ( )(4 ) 3 3 2 40 4 5 1 19 3 6 (19) 4 (19) 9 18 5 7 4 ( )( ) (90) 12 (24) 4 5 7 9

4、 7 63 1 (2)2 ( )40 8 8 5 3 6 2 1 5 2 ( ) ( )2 ( )(2 ) 2 21 3 36 6 3 1 13 9 8 (1) 4 (1) 6 12 3 9 2 ( )( ) (78) 14 (48) 2 7 9 3 1 13 3 (2)3 ( )8 2 2 4 1 18 1 1 1 6 ( ) ( )2 ( )(6 ) 2 2 2 60 6 5 10 28 8 3 (20) 3 (20) 9 27 1 9 6 ( )( ) (72) 10 (21) 6 7 9 8 1 88 5 (2)3 ( )63 7 7 9 1 18 2 1 3 2 ( ) ( )2 (

5、 )(4 ) 2 6 3 24 4 3 1 28 2 1 (10) 9 (10) 9 27 7 9 6 ( )( ) (6) 10 (45) 6 7 9 1 1 14 6 (1)2 ( )4 2 2 2 4 6 1 1 5 1 ( ) ( )3 ( )(2 ) 3 20 3 40 4 5 3 9 8 4 (7) 9 (7) 4 8 7 7 8 ( )( ) (84) 8 (3) 8 5 7 10 1 47 4 (1)2 ( )45 9 9 5 1 12 1 1 1 1 ( ) ( )2 ( )(5 ) 3 3 2 40 4 5 10 1 5 4 (17) 4 (17) 9 27 1 9 6 ( )( ) (30) 18 (21) 6 7 9 8 6 15 2 (2)3 ( )14 7 7