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初一数学上册计算题(400 道题) (1)= (2)= 2 2 3 1 1 2 (3) = (4) = 9 142 (5)= (6)=200312 3 32 (7)= (8) = 3 3 1312 2 33 (9)= (10)=)2()3( 32 22 ) 2 1 (3 (11) (12) 3 32 2222 23 5 ( 4)0.25 ( 5)( 4) 8 (13) (14) 3 42 55 4 1 4 7 2 1322 2 4 6 (15) (16) 3 32 20132 24 )3(2 6 1 1 (17) (18))3(2) 2 1 5 . 01 (1 2 (19) (20); 332 20132 22 )2(3 (21); (22);2)33()4()10( 222 )2(2 3 1 )5 . 01 () 1( 24 3 322 22 ( )( 3)( 3 ) 33 (23); (24); 9 4 ) 2 1 1(42 4 1 5 . 0 322 20022003 )2()2( (25); (26).)2()3(2)4(3)2( 223 20042009 4)25 . 0 ( (27) (28)02524 2 3 1 3 2 . 22 1 4 10 2 2 2 (29) (30) 31203 1 3 31 22 3 2 325 . 2 1 2 0528 32 . (31)(32) (56)(79) (33) (34)( 3) ( 9)( 8) ( 5) 35 15() 26 (35) (36) 2 24 31)4(2 5231 59173 6342 (37) 4 1 1)8() 5 4 ()4()125 . 0 (25 33 1 82( 4) 8 (38)如果,求的值0)2(1 2 ba 20112010 ()-3ababaa() (39)已知与互为相反数,求的值。|1|a|4|b b a (40) 223 4 . 0)2 . 1() 2 1 1( 9 2 2(41) 12 11 11 10 | 11 10 12 11 | (42) (43) 536) 6 5 12 11 9 7 (45) 4 1 () 3 5 ( 12 5 7 5 ) 12 5 ( 7 2 (44) ) 3 2 () 8 7 () 12 7 8 7 4 3 1 ((45) 4 1 3 1 2 1 1 (46) (47) 1 2 1 3 1 22 1 28( 2) 2 (48) (49) 15 643 58 )4955 . 5 (1416 . 3 4955. 61416 . 3 (50)100 (51) 22 2 3 )2( 3 2 113 ( 5) 77 ( 7 ) 12() 3322 (52) (53) 20122013 13 ( 2)( 0.5)( 6) 7 14 322012 111 ()( )( 1)( 2)( 1) 2216 (54) (55) 2 22 121 ( 3)242 433 )12() 4 3 3 2 12 5 ( (56) (57)( 20)( 3)( 5)( 7) 3712 ()() 1 4263 (58) 1 ( 6.5) ( 2)()( 5) 3 (59)若,求 a + b 的值 (60)已知a+1与b2互为相反数,求 ab 的值7a 3b (61) (-12)4(-6)2; ; (62) (62) 23 5 ( 4)0.25 ( 5)( 4) 8 (63); 11131 11231 24244 (64) ; (64) 2 22 121 ( 3)242 433 ;206137 (67);532)2(1 (68)(5)(7)5(6) (69) 25 . 0 5 8 3 2 (70). 2 1 2 2 1 2 3 2 (71) 2 22 121 ( 3)242 433 (72))12() 4 3 3 2 12 5 ( (73) 23 5 ( 4)0.25 ( 5)( 4) 8 (74); 11131 11231 24244 (75); 2 22 121 ( 3)242 433 (76) (5)(8)0(10)(15) ; (77) (3)(4)(5)+(5)(7) (78) (0.1)(1)(100)0.01(1000) (79)2(1)()() ; 1 4 3 4 2 3 8 7 (80) + )(20) ; 1 2 1 3 1 4 1 5 (81) (3)(0.12)(2)33; 1 3 1 4 1 3 (82) ( + )(36) 7 9 5 6 3 4 7 18 (83)(1220.6) 5 6 2 5 (84) (+)|2(5) ; 1 2 2 3 1 4 1 3 (85) (1)3()(1) 1 8 2 3 1 3 (86) )8(12)11(9 (87) (2)()= (88)0(13.52)= (89) (1)a = 1 3 3 7 (90) (3.25)(+)= (91) (185.8)(36)0(25)= 2 13 4 5 (92) )25()7()4( (93) ) 3 4 (8) 5 3 ( (94) ) 15 14 3 4 8( 4 3 (95))8( 4 5 ) 20 1 ( (96) ()0.125(2)(8) ; 3 7 1 3 97) 5 3 )8() 9 2 ()4() 5 2 (8 (98) (0.25)0.5(4)4; 2 7 (99) (4)(18.36)2.5; (100) ()(18)+()(3)2; 2 9 5 11 1 5 (101) (47.65)2+(37.15)(2)+10.5(7) 6 11 6 11 5 11 (102)(2)(4)+(5)3(2)(3) (103) ) 5 3 3()6 . 0( 3 4 5 2 1 3 2 1 (104) (105) ) 3 1 () 2 1 () 5 4 () 3 2 ( 2 1 1 ( 2)235 (106) 27 ()1 3 33 (107) (23)+7+(152)+65 (108)|+|+()| | (109) ()+| | | 5 2 3 1 5 2 3 1 (112)38+(22)+(+62)+(78) (113) (8)+(10)+2+(1) (114) ()+0+(+)+()+() (115) (8)+47+18+(27) 3 2 4 1 6 1 2 1 (116) (5)+21+(95)+29 (117) (8.25)+8.25+(0.25)+(5.75)+(7.5) (118) 6+(7)+(9)+2 (119) 72+65+(-105)+(28) (120) (23)+| |63| |+| |37| |+(77) (121)19+(195)+47 (122) (+18)+(32)+(16)+(+26) (122)(3)5 2 1 4 1 (123) (0.8)+(1.2)+(0.6)+(2.4) (124) (8)+(3)+2+()+12 2 1 2 1 (125)5+(5)+4+() (126) (-6.37)+(3)+6.37+2.75 5 3 3 2 5 2 3 1 4 3 (127)(12.5)(7.5) (128)(26)(12)1218 (129)1()(+) (130)(20)(+5)(5)(12) 2 1 2 3 (131)(23)(59)(3.5) (132)| |32| |(12)72(5) (133)()() (134) (+)()() 4 1 8 5 8 1 10 3 7 4 5 2 7 10 (135) ()3(3.2)7 (136) (+)() 5 16 7 1 7 2 7 3 (137) (+6.1)(4.3)(2.1)5.1 (138) ()(1)(1)(+1.75) 3 2 4 3 3 2 (139)(3)(2)(1)(1.75) (140) 8543 3 2 4 3 3 2 4 3 9 7 6 1 9 2 (141) 4+() (142) 0.5+()(2.75)+ 4 3 6 1 3 2 2 5 4 1 2 1 (143) (+4.3)(4)+(2.3)(+4) (144) (0.5)(3)6.755 4 1 2 1 (145) (9) (146) ()(0.26) (147) (2)31(0.5) 3 2 13 2 (148)(5)(13) (149) (4)(10)0.5(3) 3 1 3 1 (150) ()(1.8) (151) (0.25)()4(7) 8 3 3 4 7 4 (152) ()()() (153) (8)4()(0.75) 7 3 5 4 12 7 2 1 (154)4(96)(0.25) (155) (1+)56 48 1 7 4 8 1 14 3 (156) ()36 (157) (36)() 6 5 4 3 9 7 9 4 6 5 12 7 (158) ()(80.4) (159) (66)1()() 4 3 3 4 22 21 3 1 11 5 (160)25(25)25 (161) (+)72 4 3 2 1 4 1 18 7 4 3 6 5 9 7 (162)(2)()() (163)18(3) (164) (24)6 3 1 14 3 7 2 5 8 16 5 (165) (57)(3) (166) () (167) (42)(6) 5 3 5 2 (168) (+)() (169) ()9 (170)0.25() 21 5 7 3 13 9 8 1 (171)36(1
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