七年级数学上册有理数计算题专项训练 70.docx

1、七年级数学上册有理数计算题专项训练 70 8 8 48 5 (1)3 ( )45 9 9 5 3 8 2 1 1 1 ( ) ( )2 ( )(2 ) 2 15 3 12 2 3 8 20 5 7 (17) 7 (17) 7 21 1 6 4 ( )( ) (72) 20 (60) 2 7 6 8 1 46 7 (3)3 ( )27 9 9 3 1 12 1 1 5 6 ( ) ( )3 ( )(6 ) 2 5 2 60 6 5 4 11 3 5 (2) 3 (2) 5 10 1 2 16 ( )( ) (48) 10 (18) 8 3 2 7 9 57 3 (1)2 ( )32 8 8 4

2、1 4 2 1 1 4 ( ) ( )3 ( )(2 ) 2 4 3 12 2 3 10 26 5 6 (13) 1 (13) 9 27 3 6 4 ( )( ) (96) 6 (12) 2 7 6 1 9 25 1 (3)3 ( )24 8 8 3 4 21 3 1 7 1 ( ) ( )2 ( )(3 ) 3 32 2 60 6 5 9 17 1 7 (7) 6 (7) 8 16 7 6 12 ( )( ) (6) 2 (33) 6 7 6 9 1 14 8 (3)2 ( )24 8 8 3 3 6 1 1 3 6 ( ) ( )2 ( )(6 ) 2 27 3 20 2 5 6 16 6

3、 8 (12) 2 (12) 5 15 1 4 12 ( )( ) (114) 4 (24) 6 5 4 1 1 13 1 (3)3 ( )6 2 2 3 1 15 1 1 7 6 ( ) ( )2 ( )(6 ) 3 4 2 60 6 5 1 1 9 7 (16) 3 (16) 2 4 5 6 12 ( )( ) (30) 8 (6) 6 7 6 3 3 56 7 (3)3 ( )16 4 4 4 4 18 4 1 5 1 ( ) ( )2 ( )(3 ) 3 28 3 24 4 3 6 15 3 2 (10) 2 (10) 7 14 5 6 12 ( )( ) (30) 2 (60) 6

4、7 6 1 3 15 4 (2)3 ( )24 4 4 6 1 18 1 1 1 1 ( ) ( )2 ( )(4 ) 2 4 2 40 4 5 8 13 8 4 (20) 6 (20) 7 14 1 4 8 ( )( ) (102) 16 (45) 4 5 4 2 4 19 6 (1)3 ( )9 3 3 3 1 10 1 1 1 2 ( ) ( )2 ( )(4 ) 2 4 2 36 6 3 8 1 5 7 (12) 2 (12) 9 18 5 2 8 ( )( ) (72) 20 (27) 4 3 2 6 6 12 5 (1)2 ( )56 7 7 8 3 2 3 1 1 1 ( ) (

5、 )2 ( )(6 ) 2 15 2 60 6 5 7 13 7 9 (17) 8 (17) 6 12 1 2 8 ( )( ) (120) 8 (30) 4 3 2 1 1 16 4 (1)2 ( )10 2 2 5 1 2 4 1 1 6 ( ) ( )3 ( )(3 ) 2 6 3 20 2 5 1 9 7 2 (6) 7 (6) 5 10 1 2 4 ( )( ) (72) 18 (42) 2 3 2 1 1 72 3 (1)3 ( )12 2 2 6 1 15 1 1 7 2 ( ) ( )3 ( )(6 ) 3 7 3 36 6 3 6 13 5 5 (4) 3 (4) 7 14 7 2 12 ( )( ) (78) 6 (51) 6 3 2 10 8 19 6 (3)3 ( )81