七年级数学上册有理数计算题精练 105.docx

1、七年级数学上册有理数计算题精练 105 3 4 1 1 1 4 ( ) ( )2 ( )(4 ) 2 9 2 20 2 5 1 1 1 4 (1) 3 (1) 5 15 1 7 2 ( )( ) (66) 18 (45) 2 5 7 1 4 37 7 (3)3 ( )10 5 5 2 1 14 2 1 3 6 ( ) ( )3 ( )(3 ) 2 9 3 20 2 5 3 13 5 9 (1) 8 (1) 4 12 7 9 6 ( )( ) (78) 8 (51) 6 7 9 1 6 13 1 (2)2 ( )56 7 7 8 4 9 2 1 1 6 ( ) ( )3 ( )(2 ) 3 32

2、 3 40 4 5 1 1 2 8 (18) 7 (18) 6 18 5 9 6 ( )( ) (90) 8 (33) 6 7 9 1 1 17 2 (3)2 ( )8 2 2 4 1 18 1 1 3 1 ( ) ( )3 ( )(2 ) 2 5 3 12 2 3 8 1 9 9 (12) 4 (12) 7 21 7 7 8 ( )( ) (18) 10 (45) 8 5 7 1 1 28 5 (1)2 ( )15 5 5 3 1 16 1 1 5 1 ( ) ( )3 ( )(3 ) 2 4 2 24 4 3 1 25 8 7 (13) 6 (13) 8 24 5 5 6 ( )( ) (

3、114) 20 (60) 6 3 5 1 7 64 8 (3)2 ( )30 6 6 5 1 16 1 1 3 2 ( ) ( )2 ( )(4 ) 2 9 2 12 2 3 1 1 6 3 (1) 3 (1) 4 12 1 5 2 ( )( ) (18) 2 (48) 2 3 5 6 6 19 1 (3)2 ( )45 5 5 9 1 9 2 1 1 1 ( ) ( )3 ( )(4 ) 3 6 3 12 2 3 9 15 7 5 (6) 5 (6) 8 16 5 7 4 ( )( ) (60) 20 (45) 4 5 7 1 2 12 4 (1)2 ( )24 3 3 8 4 3 1 1

4、3 1 ( ) ( )2 ( )(4 ) 3 20 2 40 4 5 1 1 2 9 (16) 4 (16) 8 16 1 9 4 ( )( ) (18) 6 (12) 4 7 9 10 1 36 6 (1)2 ( )18 9 9 2 3 4 1 1 5 4 ( ) ( )3 ( )(5 ) 2 12 2 36 6 3 1 19 6 5 (4) 6 (4) 9 18 3 5 4 ( )( ) (60) 14 (36) 4 3 5 6 1 12 7 (1)3 ( )15 5 5 3 4 24 1 1 3 4 ( ) ( )2 ( )(5 ) 3 28 3 12 2 3 3 13 9 3 (9)

5、3 (9) 4 12 1 7 2 ( )( ) (30) 16 (21) 2 5 7 1 5 25 6 (2)2 ( )18 6 6 3 1 21 1 1 5 1 ( ) ( )3 ( )(5 ) 3 5 2 40 4 5 1 17 7 2 (13) 3 (13) 8 16 5 7 6 ( )( ) (72) 10 (39) 6 5 7 10 1 104 9 (2)3 ( )81 9 9 9 2 24 1 1 7 6 ( ) ( )3 ( )(6 ) 3 4 3 60 6 5 9 15 3 1 (20) 7 (20) 8 16 1 9 6 ( )( ) (114) 4 (42) 6 7 9 1

6、 8 12 9 (3)2 ( )63 7 7 9 3 18 1 1 1 1 ( ) ( )2 ( )(2 ) 2 15 2 24 4 3 1 7 2 4 (16) 6 (16) 4 8 3 7 4 ( )( ) (6) 4 (9) 4 5 7 8 8 18 1 (2)2 ( )27 9 9 3 2 27 1 1 3 1 ( ) ( )2 ( )(4 ) 3 8 2 40 4 5 1 1 2 9 (18) 2 (18) 3 6 1 7 2 ( )( ) (54) 8 (6) 2 5 7 1 1 13 5 (3)3 ( )30 5 5 6 3 10 1 1 5 2 ( ) ( )2 ( )(6 )

7、 2 27 3 36 6 3 7 23 6 4 (8) 2 (8) 8 24 1 7 2 ( )( ) (60) 10 (42) 2 5 7 3 1 19 5 (2)2 ( )8 2 2 4 2 3 1 1 1 4 ( ) ( )2 ( )(2 ) 3 18 3 12 2 3 7 1 8 2 (12) 7 (12) 6 18 1 9 6 ( )( ) (24) 6 (27) 6 7 9 1 1 18 4 (3)2 ( )14 7 7 2 1 18 1 1 1 1 ( ) ( )3 ( )(4 ) 3 9 2 20 2 5 10 19 6 1 (17) 7 (17) 9 18 1 9 2 ( )

8、( ) (84) 16 (48) 2 7 9 4 2 16 8 (1)3 ( )12 3 3 4 1 10 1 1 3 4 ( ) ( )3 ( )(2 ) 2 9 3 12 2 3 1 25 4 8 (3) 6 (3) 8 24 1 9 6 ( )( ) (48) 14 (51) 6 7 9 10 1 75 5 (3)3 ( )72 9 9 8 2 21 1 1 3 1 ( ) ( )2 ( )(3 ) 3 6 2 24 4 3 3 1 6 3 (5) 6 (5) 2 4 1 5 8 ( )( ) (30) 18 (27) 8 3 5 1 10 42 6 (2)3 ( )45 9 9 5 1

9、 6 1 1 1 2 ( ) ( )2 ( )(4 ) 2 6 2 12 2 3 6 22 6 4 (14) 5 (14) 7 21 1 7 2 ( )( ) (42) 10 (51) 2 5 7 4 4 18 9 (1)2 ( )9 3 3 3 1 12 2 1 5 1 ( ) ( )2 ( )(2 ) 2 5 3 36 6 3 1 1 5 6 (6) 8 (6) 2 6 1 5 6 ( )( ) (42) 16 (51) 6 3 5 1 1 57 4 (2)2 ( )18 3 3 6 3 16 1 1 1 6 ( ) ( )3 ( )(5 ) 2 15 2 20 2 5 1 10 6 7

10、(10) 4 (10) 3 9 1 9 6 ( )( ) (12) 14 (45) 6 7 9 1 1 16 1 (1)2 ( )81 9 9 9 1 14 1 1 1 4 ( ) ( )2 ( )(6 ) 2 7 3 36 6 3 1 7 8 6 (12) 9 (12) 2 6 1 9 2 ( )( ) (72) 8 (6) 2 7 9 4 2 65 2 (3)3 ( )21 3 3 7 1 4 1 1 1 1 ( ) ( )3 ( )(2 ) 2 6 3 20 2 5 1 5 1 9 (4) 1 (4) 2 4 1 7 2 ( )( ) (66) 8 (15) 2 5 7 1 8 13 6 (2)3 ( )42 7 7 6 1 6 1 1 5 6 ( ) ( )3 ( )(6 ) 2 7 2 40 4 5 7 1 2 1 (11) 1 (11) 8 24