七年级数学上册有理数计算题精练 86.docx

1、七年级数学上册有理数计算题精练 86 1 18 1 1 3 1 ( ) ( )2 ( )(6 ) 2 8 2 20 2 5 8 15 5 5 (2) 5 (2) 7 14 1 7 4 ( )( ) (108) 16 (12) 4 5 7 5 1 93 4 (2)2 ( )48 6 6 8 2 3 1 1 1 4 ( ) ( )3 ( )(3 ) 3 10 2 20 2 5 7 1 5 5 (14) 4 (14) 6 18 5 7 4 ( )( ) (54) 18 (57) 4 5 7 7 7 12 3 (3)2 ( )12 6 6 2 1 21 1 1 1 1 ( ) ( )2 ( )(2 )

2、 3 6 3 12 2 3 1 1 2 3 (9) 9 (9) 7 21 3 5 2 ( )( ) (60) 14 (39) 2 3 5 8 1 12 8 (1)2 ( )54 9 9 6 2 12 2 1 1 6 ( ) ( )2 ( )(5 ) 3 18 3 20 2 5 1 11 8 6 (8) 9 (8) 4 12 1 7 4 ( )( ) (60) 14 (9) 4 5 7 1 3 18 3 (1)2 ( )4 2 2 2 1 10 2 1 1 1 ( ) ( )3 ( )(3 ) 2 3 3 40 4 5 2 5 3 6 (9) 8 (9) 3 6 1 7 4 ( )( ) (10

3、8) 12 (24) 4 5 7 1 1 19 4 (2)2 ( )9 3 3 3 2 12 1 1 1 1 ( ) ( )3 ( )(5 ) 3 10 2 40 4 5 7 1 5 3 (17) 1 (17) 8 24 1 5 6 ( )( ) (108) 4 (51) 6 3 5 9 1 14 1 (2)2 ( )32 8 8 4 1 12 1 1 5 1 ( ) ( )2 ( )(3 ) 3 4 3 40 4 5 1 1 1 7 (11) 5 (11) 5 15 1 7 8 ( )( ) (30) 8 (9) 8 5 7 1 7 46 9 (2)2 ( )40 8 8 5 3 12 1

4、1 7 1 ( ) ( )3 ( )(3 ) 2 15 3 60 6 5 7 23 7 5 (9) 2 (9) 8 24 1 7 6 ( )( ) (42) 2 (21) 6 5 7 10 10 24 1 (3)3 ( )27 9 9 3 2 3 2 1 1 1 ( ) ( )3 ( )(6 ) 3 18 3 60 6 5 7 1 8 9 (7) 6 (7) 8 16 1 5 8 ( )( ) (108) 10 (57) 8 3 5 1 1 32 8 (3)2 ( )8 2 2 4 1 8 2 1 5 4 ( ) ( )3 ( )(6 ) 2 3 3 60 6 5 3 1 8 5 (7) 5

5、(7) 4 12 3 7 2 ( )( ) (6) 8 (48) 2 5 7 8 10 19 3 (3)2 ( )36 9 9 4 1 2 1 1 3 1 ( ) ( )3 ( )(4 ) 2 4 2 24 4 3 1 1 7 5 (6) 9 (6) 6 18 1 7 8 ( )( ) (114) 10 (30) 8 5 7 1 1 14 7 (3)3 ( )40 5 5 8 3 4 1 1 5 2 ( ) ( )3 ( )(5 ) 2 21 2 36 6 3 1 1 6 7 (16) 2 (16) 4 8 9 5 8 ( )( ) (12) 16 (48) 8 3 5 3 3 54 3 (2)2 ( )12 2 2 6 1 12 1 1 7 1 ( ) ( )2 ( )(6 ) 3 7 3 60 6 5