初一数学上册有理数的计算题精选20.docx

1、初一数学上册有理数的计算题精选20 7 7 47 3 (3)3 ( )30 6 6 5 4 24 1 1 3 4 ( ) ( )2 ( )(5 ) 3 20 2 20 2 5 10 17 7 7 (16) 2 (16) 9 18 1 4 8 ( )( ) (108) 6 (21) 4 5 4 7 7 17 7 (2)2 ( )48 6 6 8 2 12 2 1 5 6 ( ) ( )2 ( )(6 ) 3 14 3 40 4 5 5 11 2 8 (9) 4 (9) 6 12 1 6 8 ( )( ) (90) 18 (57) 4 7 6 7 9 17 2 (1)3 ( )64 8 8 8 1

2、 3 4 1 3 4 ( ) ( )2 ( )(3 ) 3 9 3 40 4 5 9 25 8 6 (10) 5 (10) 8 24 1 4 8 ( )( ) (90) 16 (3) 4 5 4 4 2 16 7 (3)3 ( )21 3 3 7 1 18 3 1 1 1 ( ) ( )3 ( )(3 ) 2 8 2 60 6 5 1 7 4 9 (14) 8 (14) 2 6 1 4 16 ( )( ) (60) 18 (24) 8 5 4 4 1 56 8 (1)3 ( )18 3 3 6 1 8 1 1 1 2 ( ) ( )2 ( )(6 ) 2 7 2 12 2 3 4 10 3 3

3、 (16) 8 (16) 3 9 1 2 8 ( )( ) (114) 18 (39) 4 3 2 7 1 19 2 (1)3 ( )42 6 6 7 4 12 1 1 1 4 ( ) ( )3 ( )(2 ) 3 28 3 12 2 3 6 16 5 7 (2) 7 (2) 5 15 1 2 4 ( )( ) (78) 12 (57) 2 3 2 7 7 16 6 (1)2 ( )42 6 6 7 1 8 2 1 3 1 ( ) ( )2 ( )(6 ) 2 3 3 20 2 5 10 1 9 8 (8) 5 (8) 9 18 3 2 8 ( )( ) (78) 16 (18) 4 3 2

4、1 5 16 6 (2)2 ( )32 4 4 8 1 9 4 1 1 6 ( ) ( )2 ( )(2 ) 3 2 3 20 2 5 5 1 3 3 (3) 2 (3) 6 18 1 2 8 ( )( ) (24) 10 (51) 4 3 2 7 1 88 4 (2)2 ( )42 6 6 7 3 4 1 1 5 4 ( ) ( )3 ( )(4 ) 2 24 2 24 4 3 1 17 1 8 (14) 1 (14) 6 18 3 2 4 ( )( ) (48) 14 (3) 2 3 2 5 7 87 3 (1)2 ( )42 6 6 7 2 9 4 1 1 1 ( ) ( )2 ( )(5 ) 3 10 3 40 4 5 7 23 1 7 (11) 3 (11) 8 24 1 6 8 ( )( ) (78) 10 (33) 4 7 6 1 3 87 1 (1)3 ( )36 4 4 9 2 6 2 1 3 1 ( ) ( )2 ( )(2 ) 3 6 3 12 2 3 5 11 2 4 (5) 3 (5) 6 12 1 2 12 ( )( ) (108) 8 (36) 6 3 2 7 5 17 2 (2)3 ( )30 6 6 5 1 6 3 1 3 4