七年级数学上册有理数计算题精练 150.docx

1、七年级数学上册有理数计算题精练 150 1 10 13 1 (2)3 ( )18 9 9 2 1 4 1 1 3 4 ( ) ( )2 ( )(5 ) 2 5 3 12 2 3 1 1 4 8 (4) 2 (4) 6 12 3 7 4 ( )( ) (78) 20 (6) 4 5 7 8 1 14 2 (3)3 ( )14 7 7 2 2 27 1 1 1 6 ( ) ( )2 ( )(4 ) 3 16 3 60 6 5 5 11 3 4 (6) 8 (6) 4 12 3 9 2 ( )( ) (114) 12 (27) 2 7 9 9 9 34 6 (3)3 ( )32 8 8 4 1 8

2、1 1 1 1 ( ) ( )2 ( )(4 ) 2 3 2 20 2 5 1 20 5 8 (11) 7 (11) 7 21 7 9 6 ( )( ) (54) 16 (24) 6 7 9 1 4 19 1 (3)3 ( )27 3 3 9 1 6 1 1 3 1 ( ) ( )2 ( )(4 ) 2 2 2 12 2 3 1 1 1 3 (3) 7 (3) 5 10 1 9 2 ( )( ) (78) 10 (6) 2 7 9 6 1 89 6 (1)3 ( )49 7 7 7 3 14 2 1 1 4 ( ) ( )2 ( )(3 ) 2 24 3 60 6 5 1 5 8 3 (18)

3、 8 (18) 2 6 7 7 8 ( )( ) (54) 10 (42) 8 5 7 4 4 18 5 (3)2 ( )21 3 3 7 1 12 1 1 3 1 ( ) ( )3 ( )(2 ) 2 7 3 20 2 5 1 7 7 4 (15) 3 (15) 4 8 1 7 2 ( )( ) (60) 20 (60) 2 5 7 5 3 16 6 (1)3 ( )16 4 4 4 1 18 1 1 1 2 ( ) ( )2 ( )(5 ) 3 5 2 36 6 3 3 3 8 4 (7) 5 (7) 2 4 3 9 2 ( )( ) (30) 6 (21) 2 7 9 1 2 83 4

4、(1)2 ( )27 3 3 9 1 10 2 1 7 1 ( ) ( )3 ( )(4 ) 2 6 3 60 6 5 10 17 1 7 (10) 4 (10) 9 18 1 9 8 ( )( ) (36) 20 (18) 8 7 9 10 10 53 8 (2)3 ( )54 9 9 6 1 18 1 1 3 1 ( ) ( )2 ( )(5 ) 3 3 2 40 4 5 7 1 2 1 (9) 2 (9) 6 18 1 5 6 ( )( ) (102) 8 (6) 6 3 5 3 1 17 4 (3)3 ( )24 4 4 6 1 15 1 1 1 6 ( ) ( )2 ( )(2 )

5、3 4 3 20 2 5 1 3 6 1 (15) 2 (15) 2 4 5 9 4 ( )( ) (48) 8 (45) 4 7 9 7 1 13 8 (2)3 ( )56 8 8 7 1 18 1 1 3 6 ( ) ( )2 ( )(2 ) 3 2 2 20 2 5 1 13 4 6 (12) 7 (12) 7 14 1 5 6 ( )( ) (36) 6 (36) 6 3 5 1 1 14 8 (2)2 ( )8 2 2 4 1 18 1 1 1 6 ( ) ( )2 ( )(6 ) 2 7 3 20 2 5 3 1 1 8 (5) 2 (5) 4 12 3 9 4 ( )( ) (6) 2 (9) 4 7 9 1 6 15 3 (2)2 ( )49 7 7 7