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1、1 人教版七年级上册有理数计算题 一、 有理数加法 (9)+(13) (12)+27 (28)+(34) 67+(92) (27.8)+43.9 (23)+7+(152)+65 |+()| ()+| 38+(22)+(+62)+(78) 5 2 3 1 5 2 3 1 (8)+(10)+2+(1) ()+0+(+)+()+() 3 2 4 1 6 1 2 1 (8)+47+18+(27) (5)+21+(95)+29 (8.25)+8.25+(0.25)+(5.75)+(7.5) 6+(7)+(9)+2 72+65+(-105)+(28) (23)+|63|+|37|+(77) 19+(195
2、)+47 (+18)+(32)+(16)+(+26) (0.8)+(1.2)+(0.6)+(2.4) (8)+(3)+2+()+12 2 1 2 1 5+(5)+4+() (-6.37)+(3)+6.37+2.75 5 3 3 2 5 2 3 1 4 3 2 有理数减法 8-9-8-9 79 79 0(9) (25)(13) 8.2(6.3) (3)5 (12.5)(7.5) 2 1 4 1 (26)(12)1218 1()(+) 2 1 2 3 (20)(+5)(5)(12) (23)(59)(3.5) |32|(12)72(5) ()() 4 1 8 5 8 1 (+)()() ()3(3
3、.2)7 10 3 7 4 5 2 7 10 5 16 (+)() (+6.1)(4.3)(2.1)5.1 7 1 7 2 7 3 ()(1)(1)(+1.75) (3)(2)(1)(1.75) 3 2 4 3 3 2 3 2 4 3 3 2 8543 4+() 4 3 9 7 6 1 9 2 4 3 6 1 3 2 2 5 0.5+()(2.75)+ (+4.3)(4)+(2.3)(+4) 4 1 2 1 3 有理数乘法 (9) ()(0.26) (2)31(0.5) 3 2 13 2 (5)(13) (4)(10)0.5(3) 3 1 3 1 ()(1.8) (0.25)()4(7) 8
4、3 3 4 7 4 ()()() (8)4()(0.75) 7 3 5 4 12 7 2 1 4(96)(0.25) (1+)56 48 1 7 4 8 1 14 3 ()36 (36)() 6 5 4 3 9 7 9 4 6 5 12 7 ()(80.4) (66)1()() 4 3 3 4 22 21 3 1 11 5 25(25)25 (+)72 4 3 2 1 4 1 18 7 4 3 6 5 9 7 4 有理数除法 18(3) (24)6 (57)(3) () 5 3 5 2 (42)(6) (+)() ()9 0.25() 21 5 7 3 13 9 8 1 36(1)() (1)
5、(4) 3()() 3 1 3 2 7 4 7 6 9 7 0(3)(7) 3() (24)(6) 4 1 3 1 4 1 7 6 2(518) 1(3)() ()() 18 1 3 1 3 1 8 7 14 3 8 3 ()() (+)() 3.5 (0.5) 4 3 8 7 6 5 2 9 8 3 4 3 4 3 6 1 7 3 2 1 1(1)1(7) () 7 2 6 5 8 3 5 6 3 1 2 1 4 5 (2)4 0.8+4.8()2.2+0.8 7 5 5 2 7 5 12 5 3 5 11 2 7 2 7 3 11 9 5 五、有理数混合运算 ()(154) (2.4) 1
6、2 7 5 4 20 3 6 1 7 3 18 7 2()(5) 15(113(1) 7 3 7 4 7 1 2 1 4 1 5 2 2 1 8 1 (5)()5 (+)() 5 1 5 1 3 1 21 1 14 3 7 2 42 1 130.34+(13)0.34 8(25)(5) 3 2 7 2 3 1 7 5 (13)(134)() (4)(5)+(4)3 13 1 67 1 8 7 2 1 4 1 8 1 6 (1650+3)(2) (0.5)(3)+6.755 5 2 4 1 2 1 17887.21+43+5312.79 (6)(4)+(32)(8)3 21 2 21 19 ()
7、+|1| (9)(4)+ (60)12 7 2 2 1 2 1 ()1+() |3|10(15) 14 9 7 5 21 8 42 1 3 1 1()2 (23+1)(1)(7) 5 3 32 7 16 5 2 1 3 1 2 1 18 17 6 1 7 2 2 2 3 2 231 4 3 3 4 3 1312324 222 2 32 343242522 2 3232 +22232 3 2 2 2 3 ) 3(31312 2 1 2 2 1 03 2332 2 22 2 1 38 . 0 2 32 3 1 322 2 1 (1) 0 6+ 10+843 2 4 3 3 2 2 2 5 1 22 (10.5) 5 1 55 . 24 . 0251 3 1 322 3 2 3 2 3 8 4+6 +2+(6)23 13 2 1 8 3 12 27 3 1 2 7232 3 1 (-8)(-) ()423 2 1 2 2 2 2 2 345 11 5 8 7 47 23 9 36222 2 1 4 3 5 1 262962 3 1 2 1 +(10.5)2 )2( 2 1 14 . 033 3 4 1 3 1 23 4+ +36713 3 235 3 3128 3 2332 25 . 0 1